DP Physics Questionbank

Description

Overview of the essential ideas for this topic

5.1: When charges move an electric current is created.

5.2: One of the earliest uses for electricity was to produce light and heat. This technology continues to have a major impact on the lives of people around the world.

5.3: Electric cells allow us to store energy in a chemical form.

5.4: The effect scientists call magnetism arises when one charge moves in the vicinity of another moving charge.

Directly related questions

• 18M.2.SL.TZ2.4b.ii: Determine E.
• 18M.2.SL.TZ2.4b.i: Show that the resistance of the wire AC is 28 Ω.
• 18M.2.SL.TZ2.4a: State what is meant by the emf of a cell.
• 18M.2.HL.TZ1.4b: Calculate the drift speed v of the electrons in the conductor in cm s–1.
• 18M.2.HL.TZ2.9c.i: Show that the speed v of an electron in the hydrogen atom is related to the radius r of the orbit...
• 18M.2.HL.TZ2.8c.ii: Calculate, in A, the average current during the discharge.
• 18M.2.HL.TZ2.4c: Cell X is replaced by a second cell of identical emf E but with internal resistance 2.0...
• 18M.1.SL.TZ2.22: A cell has an emf of 4.0 V and an internal resistance of 2.0 Ω. The ideal voltmeter reads 3.2...
• 18M.1.SL.TZ2.21: A beam of electrons moves between the poles of a magnet.                                        ...
• 18M.1.SL.TZ2.20: An electron enters the region between two charged parallel plates initially moving parallel...
• 18M.1.SL.TZ2.19: A cell with negligible internal resistance is connected as shown. The ammeter and the...
• 18M.1.HL.TZ2.16: A cell of emf 6.0 V and negligible internal resistance is connected to three resistors as...
• 18M.2.SL.TZ1.5b: Calculate, in N, the magnitude of the magnetic force acting on the electron.
• 18M.2.SL.TZ1.5a: State the direction of the magnetic field.
• 18M.2.SL.TZ1.4b: Calculate the drift speed v of the electrons in the conductor in cm s–1. State your answer to an...
• 18M.2.SL.TZ1.4a: Calculate the resistance of the conductor.
• 18M.2.HL.TZ1.8c.ii: An electron is emitted from the photoelectric surface with kinetic energy 2.1 eV. Calculate the...
• 18M.2.HL.TZ1.4c.ii: Show that \(\frac{v}{E} = \frac{1}{{ne\rho }}\).
• 18M.2.HL.TZ1.4c.i: Determine the electric field strength E.
• 18M.1.SL.TZ1.21: Two resistors X and Y are made of uniform cylinders of the same material. X and Y are connected...
• 18M.1.SL.TZ1.20: Five resistors of equal resistance are connected to a cell as shown.                            ...
• 18M.1.SL.TZ1.19: A liquid that contains negative charge carriers is flowing through a square pipe with sides A, B,...
• 18M.1.SL.TZ1.18: Three resistors are connected as shown. What is the value of the total resistance between X and...
• 18M.1.HL.TZ1.17: When an electric cell of negligible internal resistance is connected to a resistor of resistance...
• 18M.1.HL.TZ1.15: An ion of charge +Q moves vertically upwards through a small distance s in a uniform vertical...
• 17N.3.SL.TZ0.2b: State the value of the intercept on the R axis.
• 17N.3.SL.TZ0.2a: Show that the gradient of the graph is equal to \(\frac{1}{e}\).
• 17N.2.SL.TZ0.3c: Draw a circuit diagram to show how you could measure the resistance of the carbon-film resistor...
• 17N.2.SL.TZ0.3b: The current direction is now changed so that charge flows vertically through the film. Deduce,...
• 17N.2.SL.TZ0.3a.iii: State why knowledge of quantities such as resistivity is useful to scientists.
• 17N.2.SL.TZ0.3a.ii: The film must dissipate a power less than 1500 W from each square metre of its surface to avoid...
• 17N.2.SL.TZ0.3a.i: The resistance of the carbon film is 82 Ω. The resistivity of carbon is 4.1 x 10–5 Ω m. Calculate...
• 17N.2.HL.TZ0.8c: The electron is replaced by a proton which is also released from rest at X. Compare, without...
• 17N.2.HL.TZ0.8b: An electron is placed at X and released from rest. Draw, on the diagram, the direction of the...
• 17N.2.HL.TZ0.8a: Outline what is meant by electric field strength.
• 17N.2.HL.TZ0.2d: Satellite X must release ions into the space between the satellites. Explain why the current in...
• 17N.2.HL.TZ0.2c: The cable between the satellites cuts the magnetic field lines of the Earth at right...
• 17N.1.SL.TZ0.20: The diagram shows two current-carrying wires, P and Q, that both lie in the plane of the paper....
• 17N.1.SL.TZ0.19: With reference to internal energy conversion and ability to be recharged, what are...
• 17N.1.SL.TZ0.18: Kirchhoff’s laws are applied to the circuit shown. What is the equation for the dotted...
• 17N.1.SL.TZ0.17: In the circuit shown, the fixed resistor has a value of 3 Ω and the variable resistor can be...
• 17N.1.HL.TZ0.18: The diagram shows the magnetic field surrounding two current-carrying metal wires P and Q. The...
• 17N.1.HL.TZ0.15: Two wires, X and Y, are made from the same metal. The wires are connected in series. The radius...
• 17M.3.SL.TZ2.2b: In one experiment a student obtains the following graph showing the variation with current I of...
• 17M.3.SL.TZ2.2a: An ammeter and a voltmeter are connected in the circuit. Label the ammeter with the letter A and...
• 17M.2.HL.TZ2.6d: The two cables in part (c) are suspended a constant distance apart. Explain how the magnetic...
• 17M.2.HL.TZ2.6b.iii: Determine the power dissipated in the cable per unit length.
• 17M.2.HL.TZ2.6b.ii: Calculate the peak current in the cable.
• 17M.2.HL.TZ2.6b.i: Calculate the radius of each wire.
• 17M.2.HL.TZ1.4a.iii: Calculate the power dissipated in the cable.
• 17M.2.SL.TZ2.5b.ii: There is a current of 730 A in the cable. Show that the power loss in 1 m of the cable is about...
• 17M.2.SL.TZ2.5a: The copper wires and insulator are both exposed to an electric field. Discuss, with reference to...
• 17M.2.SL.TZ1.5b.i: Explain which interaction is responsible for this decay.
• 17M.2.SL.TZ1.4c: The heater changes the temperature of the water by 35 K. The specific heat capacity of water is...
• 17M.2.SL.TZ1.4b: Explain, in terms of electrons, what happens to the resistance of the cable as the temperature of...
• 17M.2.SL.TZ1.4a.ii: Calculate the resistance of the cable.
• 17M.2.SL.TZ1.4a.i: Calculate the current in the copper cable.
• 17M.1.HL.TZ2.17: The diagram shows the path of a particle in a region of uniform magnetic field. The field is...
• 17M.1.HL.TZ2.15: Positive charge is uniformly distributed on a semi-circular plastic rod. What is the direction of...
• 17M.1.HL.TZ1.17: Electrons, each with a charge e, move with speed v along a metal wire. The electric current in...
• 17M.1.SL.TZ2.21: A positively-charged particle moves parallel to a wire that carries a current upwards. What is...
• 17M.1.SL.TZ2.20: A circuit contains a cell of electromotive force (emf) 9.0 V and internal resistance 1.0 Ω...
• 17M.1.SL.TZ2.19: A wire has variable cross-sectional area. The cross-sectional area at Y is double that at...
• 17M.1.SL.TZ2.18: The diagram shows two equal and opposite charges that are fixed in place. At which points is...
• 17M.1.SL.TZ1.21: An electron travelling at speed v perpendicular to a magnetic field of strength B experiences a...
• 17M.1.SL.TZ1.20: A cell is connected in series with a resistor and supplies a current of 4.0 A for a time of 500...
• 17M.1.SL.TZ1.19: An electron is accelerated through a potential difference of 2.5 MV. What is the change in...
• 17M.1.SL.TZ1.18: The graph shows the variation of current with potential difference for a filament lamp. What...
• 17M.1.SL.TZ1.15: Two pulses are travelling towards each other. What is a possible pulse shape when the pulses...
• 09N.1.SL.TZ0.21: A positively charged particle enters the space between two charged conducting plates, with a...
• 09N.1.SL.TZ0.20: Which of the following diagrams illustrates the electric field pattern of a negatively charged...
• 09N.1.SL.TZ0.18: In the circuits below the cells have the same emf and zero internal resistance. The resistors all...
• 09N.1.SL.TZ0.17: A cylindrical conductor of length \(l\), diameter \(D\) and resistivity \(\rho \) has resistance...
• 09N.1.SL.TZ0.16: A cell of \({\text{emf }}\varepsilon \) and internal resistance \(r\) delivers current to a small...
• 09N.1.HL.TZ0.9: Four point charges of magnitudes \( + q\), \( + q\), \( - q\), and \( - q\) are held in place at...
• 16N.2.SL.TZ0.7b: Components R and T are placed in a circuit. Both meters are ideal. Slider Z of the...
• 16N.2.SL.TZ0.7a: (i) State how the resistance of T varies with the current going through T. (ii) Deduce, without...
• 16M.2.HL.TZ0.6a: Two cells of negligible internal resistance are connected in a circuit. The top cell has...
• 16N.2.HL.TZ0.9c: The velocity of the electrons is now increased. Explain the effect that this will have on the...
• 16N.2.HL.TZ0.9b: The following data are available. Separation of the plates RS = 4.0 cm Potential...
• 16N.2.HL.TZ0.9a: Identify, on the diagram, the direction of the electric field between the plates.
• 16M.2.SL.TZ0.5d: The diagram shows a cross-sectional view of the connecting wire in (c). The wire which carries...
• 16M.2.SL.TZ0.5c: A connecting wire in the circuit has a radius of 1.2mm and the current in it is 3.5A. The number...
• 16M.2.SL.TZ0.5b: The student adjusts the variable resistor and takes readings from the ammeter and voltmeter. The...
• 16M.2.SL.TZ0.5a: State what is meant by an ideal voltmeter.
• 16M.2.SL.TZ0.1e: The electric motor is connected to a source of potential difference 120V and draws a current of...
• 16N.1.HL.TZ0.17: A 12V battery has an internal resistance of 2.0Ω. A load of variable resistance is connected...
• 16N.1.SL.TZ0.21: A wire carrying a current \(I\) is at right angles to a uniform magnetic field of strength B. A...
• 16N.1.SL.TZ0.20: A cell of emf 4V and negligible internal resistance is connected to three resistors as shown. Two...
• 16N.1.SL.TZ0.19: An electrical circuit is shown with loop X and junction Y. What is the correct expression of...
• 16N.1.SL.TZ0.18: A –5µC charge and a +10µC charge are a fixed distance apart. Where can the electric field be...
• 16M.1.HL.TZ0.12: A circuit consists of a cell of electromotive force (emf) 6.0V and negligible...
• 16M.1.SL.TZ0.21: ...
• 16M.1.SL.TZ0.20: A circuit consists of a cell of electromotive force (emf) 6.0V and negligible internal resistance...
• 16M.1.SL.TZ0.19: The graph shows the variation of current I in a device with potential difference V across...
• 16M.1.SL.TZ0.18: Three...
• 10N.2.SL.TZ0.B2Part1.c: (i)     Determine the magnitude of the electric field between the base of the thundercloud and...
• 10N.2.SL.TZ0.B2Part1.b: A thundercloud can be modelled as a negatively charged plate that is parallel to the...
• 10N.2.SL.TZ0.A3b: The graph shows the current-voltage characteristics for the component X. Component X is now...
• 10N.2.SL.TZ0.A3a: Draw the complete diagram of the circuit that uses a potential divider, ammeter, voltmeter and...
• 10N.1.SL.TZ0.22: An electron enters the vacuum between two oppositely charged plates with velocity \(v\). The...
• 10N.1.SL.TZ0.19: A current is established in a coil of wire in the direction shown. The direction of the...
• 10N.1.SL.TZ0.18: Three identical resistors are connected to a battery as shown. Which of the following is a...
• 10N.1.SL.TZ0.17: The circuit shows a resistor R connected in series with a battery and a resistor of resistance...
• 10N.1.SL.TZ0.16: Two resistors, made of the same material, are connected in series to a battery. The length of...
• 10M.1.SL.TZ1.21: An electron travelling in the direction shown by the arrow X, enters a region of uniform magnetic...
• 10M.1.SL.TZ1.20: Three positive point charges of equal magnitude are held at the corners X, Y and Z of a...
• 10M.1.SL.TZ1.18: The electromotive force (emf) of a cell is defined as A.     the power supplied by the cell per...
• 10M.1.SL.TZ1.17: A resistor of resistance \({\text{12 }}\Omega \) is connected in series with a cell of negligible...
• 09M.1.SL.TZ1.20: Which diagram best represents the electric field due to a negatively charged conducting sphere?
• 09M.1.SL.TZ1.17: Two \(6{\text{ }}\Omega \) resistors are connected in series with a 6 V cell. A student...
• 09M.1.SL.TZ1.16: Two rectangular blocks, \(X\) and \(Y\), of the same material have different dimensions but the...
• 09M.1.HL.TZ1.23: A current carrying wire is in the same plane as a uniform magnetic field. The angle between the...
• 14M.2.SL.TZ2.6d: (i)     Draw a circuit diagram of the experimental arrangement that will enable the student to...
• 14M.2.SL.TZ2.5g: (i)     The diagram shows a length of copper wire that is horizontal in the magnetic field of the...
• 14M.2.SL.TZ2.5f: The diagram shows a current I in a vertical wire that passes through a hole in a horizontal piece...
• 14M.2.SL.TZ2.5e: Distinguish between an insulator and a conductor.
• 14M.2.HL.TZ2.8a: (i)     Distinguish between an insulator and a conductor. (ii)     Outline what is meant by the...
• 14N.2.SL.TZ0.6h.ii: Discuss the subsequent motion of the electron.
• 14N.2.SL.TZ0.6h.i: Calculate the initial acceleration of the electron.
• 14N.2.SL.TZ0.6g.ii: On the axes, draw a graph to show the variation of the electric field strength \(E\) with...
• 14N.2.SL.TZ0.6g.i: Show that the magnitude of the electric field strength at the surface of the sphere is about...
• 14N.2.SL.TZ0.2b.iv: Calculate the energy dissipated per second in the variable resistor.
• 14N.2.SL.TZ0.2b.iii: Determine the internal resistance of the cell.
• 14N.2.SL.TZ0.2b.ii: Show that the emf of the cell is 1.25 V.
• 14N.2.SL.TZ0.2b.i: Draw on the diagram the positions of the ammeter and voltmeter.
• 14N.2.SL.TZ0.2a: Define electromotive force (emf ).
• 14N.2.HL.TZ0.8d.ii: Using the graph, determine the current in the circuit.
• 14N.2.HL.TZ0.8d.i: On the graph, sketch the variation of \(V\) with \(I\) for the cell.
• 14N.2.HL.TZ0.8b: Outline, with reference to charge carriers, what is meant by the internal resistance of a cell.
• 15N.2.SL.TZ0.6g: Calculate the electromotive force (emf) of the cell.
• 15N.2.SL.TZ0.6f.ii: Determine the internal resistance of the cell.
• 15N.2.SL.TZ0.6f.i: Outline what is meant by the internal resistance of a cell.
• 15N.2.SL.TZ0.6e: Show that the current in the circuit is approximately 0.70 A when \(R = 0.80{\text{ }}\Omega \).
• 15N.2.SL.TZ0.6d: An ammeter and a voltmeter are used to investigate the characteristics of a variable resistor of...
• 15N.1.SL.TZ0.19: A cylindrical resistor of length \(l\) is made from a metal of mass \(m\). It has a resistance...
• 15N.2.HL.TZ0.9h: The upper section of wire is adjusted to make an angle of 30° with the lower section of wire....
• 15N.2.HL.TZ0.9g.ii: Each cubic metre of the wire contains approximately \(8.5 \times {10^{28}}\) free electrons. The...
• 15N.2.HL.TZ0.9g.i: Calculate the magnetic force acting per unit length on the upper section of wire.
• 15N.2.HL.TZ0.9f: Deduce what happens to the reading on the electronic balance when the current is switched on.
• 15N.2.HL.TZ0.9d: The cell may be damaged if it dissipates a power greater than 1.2 W. Outline why damage in the...
• 15N.2.HL.TZ0.8f.iii: Determine the input voltage to the transformer if the power loss in the cables from the power...
• 15N.2.HL.TZ0.8f.ii: Calculate the power supplied to the transformer.
• 15N.2.HL.TZ0.8f.i: Calculate the current in the cables connected to the town
• 15N.1.HL.TZ0.18: A filament lamp and a semiconducting diode have the voltage–current (\(V\)–\(I\)) characteristics...
• 15M.1.HL.TZ1.19: A circuit is formed by connecting a resistor between the terminals of a battery of electromotive...
• 15M.1.HL.TZ1.32: An ion follows a circular path in a uniform magnetic field. Which single change decreases the...
• 15M.1.SL.TZ2.18: The diagram shows a circuit used to investigate internal resistance of a cell. The variable...
• 15M.1.SL.TZ1.18: Four resistors are connected as shown. What is the total resistance between X and Y? A. 3 Ω B....
• 15M.1.SL.TZ2.16: What is the definition of electric current? A. The ratio of potential difference across a...
• 15M.1.SL.TZ2.21: A long, straight, current-carrying wire is placed between a pair of magnets as shown. What is the...
• 15M.1.HL.TZ2.17: The diagram shows an electric circuit containing a potentiometer of maximum resistance R. The...
• 15M.2.SL.TZ1.5a: (i) Define electromotive force (emf). (ii) State how the emf of the battery can be measured.
• 15M.2.HL.TZ1.3a: Define electromotive force (emf).
• 15M.2.HL.TZ1.3b: The graph below shows the variation with temperature T of the resistance RX of the...
• 15M.2.HL.TZ1.8a: Identify, on the diagram, the direction of the force on the coil with the current directions shown.
• 15M.2.HL.TZ1.8b: Calculate the maximum magnetic force acting on the coil.
• 15M.2.SL.TZ2.5e: The 24 Ω resistor is covered in an insulating material. Explain the reasons for the differences...
• 15M.2.SL.TZ2.5f: An electric circuit consists of a supply connected to a 24Ω resistor in parallel with a variable...
• 15M.2.SL.TZ2.6e: Six point charges of equal magnitude Q are held at the corners of a hexagon with the signs of the...
• 15M.2.HL.TZ2.9a: A 24Ω resistor is made from a conducting wire. (i) The diameter of the wire is 0.30 mm and the...
• 15M.2.HL.TZ2.9b: An electric circuit consists of a supply connected to a 24Ω resistor in parallel with a variable...
• 14M.1.SL.TZ1.16: Each of the resistors in the arrangements below has resistance R. Each arrangement is connected,...
• 14M.1.SL.TZ1.17: Two resistors of resistance 10 Ω and 20 Ω are connected in parallel to a cell of negligible...
• 14M.1.SL.TZ1.18: A battery of emf 12 V and negligible internal resistance is connected to a resistor of constant...
• 14M.1.SL.TZ1.20: Three parallel wires, X, Y and Z, carry equal currents. The currents in X and Z are directed into...
• 14M.1.SL.TZ1.21: Point P is at the same distance from two charges of equal magnitude and opposite sign. What is...
• 14M.1.SL.TZ2.17: Which of the following is a statement of Ohm’s law? A. The resistance of a conductor is...
• 14M.1.SL.TZ2.18: Three identical filament lamps W, X and Y are connected in the circuit as shown. The cell has...
• 14M.1.SL.TZ2.19: An electron is travelling in a region of uniform magnetic field. At the instant shown, the...
• 14M.2.SL.TZ1.3a: Calculate the magnitude of the electric force acting on the proton when it is in the electric field.
• 14M.2.SL.TZ1.3b: A uniform magnetic field is applied in the same region as the electric field. A second proton...
• 15N.1.SL.TZ0.23: An electron is moving parallel to a straight current-carrying wire. The direction of conventional...
• 15N.1.SL.TZ0.22: A \( + 3{\text{ C}}\) charge and a \( - 4{\text{ C}}\) charge are a distance \(x\) apart. P is a...
• 15N.1.SL.TZ0.20: Three resistors of resistance \(R\) are connected in parallel across a cell of electromotive...
• 14N.1.SL.TZ0.16: A cylindrical resistor of volume V and length l has resistance R. The resistor has a uniform...
• 14N.1.SL.TZ0.18: A lamp is connected to an electric cell and it lights at its working voltage. The lamp is then...
• 14N.1.HL.TZ0.19: A voltmeter of resistance 50kΩ is used to measure the electric potential difference in a circuit,...
• 14N.1.HL.TZ0.18: A lamp is connected to an electric cell and it lights at its working voltage. The lamp is then...
• 11N.1.SL.TZO.16: A cell is connected in series with a 2.0Ω resistor and a switch. The voltmeter is connected...
• 11N.1.SL.TZO.19: Which of the following is the SI unit of gravitational field strength? A. NB. N mC. Nkg–1D. Nm2kg–2
• 11N.1.SL.TZO.20: Which of the following is the best representation of the electric field lines around a negatively...
• 11N.1.SL.TZO.21: The diagram shows two long wires X and Y carrying identical currents in the same...
• 12N.1.SL.TZ0.20: A cell with an emf of 2.0 V and negligible internal resistance is connected across a 1.00 m...
• 11N.1.HL.TZ0.21: A resistor has a resistance R. The potential difference across the resistor is V. Which of the...
• 12N.1.SL.TZ0.19: An ideal ammeter is used to measure the current in a resistor. Which of the following gives the...
• 12N.1.SL.TZ0.21: An electron has a kinetic energy of 4.8×10–10J. What is the equivalent value of this kinetic...
• 12N.1.SL.TZ0.24: The magnetic field produced by a current in a straight wire is in A. the same direction as the...
• 12N.1.HL.TZ0.20: An ideal ammeter is used to measure the current in a resistor. Which of the following gives the...
• 13N.1.HL.TZ0.25: A metal rod M is falling vertically within a horizontal magnetic field. The metal rod and...
• 13N.1.SL.TZ0.17: A resistor X of resistance R is made of wire of length L and cross-sectional area A. Resistor Y...
• 13N.1.SL.TZ0.20: Which diagram represents the pattern of electric field lines of two small positive point charges...
• 13N.1.SL.TZ0.19: Each of the resistors in the circuit has a resistance of 2.0 Ω. The cell has an emf of 3.0 V and...
• 13M.2.SL.TZ1.7b: The diagram shows a pair of horizontal metal plates. Electrons can be deflected vertically using...
• 13M.2.SL.TZ1.7c: The diagram shows two isolated electrons, X and Y, initially at rest in a vacuum. The initial...
• 13M.2.SL.TZ1.7a: Define electric field strength.
• 12M.1.SL.TZ2.16: A metal wire X with length L and radius r has a resistance R. A wire Y of length 4L made from...
• 13M.2.SL.TZ1.8d: The diagram shows 12 photovoltaic cells connected in series and in parallel to form a module to...
• 12M.1.SL.TZ1.16: The ampere is defined in terms of A. power dissipated in a wire of known length, cross-sectional...
• 12M.1.SL.TZ2.17: Three identical filament lamps, X, Y and Z, are connected as shown to a battery of...
• 12M.1.SL.TZ2.18: Which of the following is the correct way of connecting an ammeter and of connecting a voltmeter...
• 12M.1.SL.TZ1.21: Three parallel wires, X, Y and Z, carry equal currents into the page.   Which arrow...
• 12M.1.SL.TZ2.20: Coulomb’s law refers to electric charges that are A. on any charged objects.B. charged hollow...
• 12M.1.SL.TZ2.21: Which of the following will not give rise to a magnetic field? A. A moving electronB. A moving...
• 12M.1.SL.TZ1.17: A battery of emf 6.0V is connected to a 2.0Ω resistor. The current in the circuit is 2.0A. The...
• 12M.1.SL.TZ1.18: Which of the following gives the resistances of an ideal ammeter and an ideal voltmeter?
• 12M.1.HL.TZ1.19: A proton p is at rest between the poles of two horizontal magnets as shown below. The magnetic...
• 11M.1.SL.TZ2.16: Two electrodes, separated by a distance d, in a vacuum are maintained at a constant potential...
• 11M.1.SL.TZ2.17: The graph shows the I–V characteristics of two resistors.   When resistors X and Y are...
• 11M.1.SL.TZ2.20: Two isolated point charges, -7 μC and +2 μC, are at a fixed distance apart. At which point is...
• 13M.2.SL.TZ2.6b: In a simple model of the hydrogen atom, the electron can be regarded as being in a circular orbit...
• 13M.2.SL.TZ2.6c: An electric cell is a device that is used to transfer energy to electrons in a circuit. A...
• 11M.1.HL.TZ2.6: The diagram below shows a uniform electric field of...
• 13M.2.SL.TZ2.6a: State Coulomb’s law.
• 11M.1.SL.TZ2.21: A long straight wire carries an electric current perpendicularly out of the paper....
• 11M.1.SL.TZ2.22: Which nucleons in a nucleus are involved in the Coulomb interaction and the...
• 11M.1.HL.TZ2.22: A long straight wire...
• 11M.1.HL.TZ2.20: Two resistors, of resistance R1 and R2,...
• 11M.1.HL.TZ2.21: Two isolated point charges,...
• 13M.1.SL.TZ2.21: Three wires, P, Q and R, carry equal currents directed into the plane of the paper. Which...
• 13M.1.SL.TZ2.16: A copper wire with length L and radius r has a resistance R. What is the radius of a copper wire...
• 13M.1.SL.TZ2.17: An electric circuit consists of three identical resistors of resistance R connected to a cell of...
• 13M.1.SL.TZ2.18: A proton is accelerated from rest through a potential difference of 1000 V. What is the potential...
• 13M.1.HL.TZ2.20: A copper wire with length L and radius r has a resistance R. What is the radius of a copper wire...
• 13M.1.HL.TZ2.25: The electric potential is VR at a point R in an electric field and at another point S the...
• 12M.2.SL.TZ2.7b: The plates in (a) are replaced by a cell that has an emf of 12.0 V and internal resistance 5.00...
• 12M.2.SL.TZ2.7a: Ionized hydrogen atoms are accelerated from rest in the vacuum between two vertical parallel...
• 11M.2.SL.TZ2.9a: ...
• 11M.2.SL.TZ2.9b: ...
• 12M.2.SL.TZ2.9a: The magnitude of gravitational field strength g is defined from the equation shown...
• 12M.2.SL.TZ1.9b: (i) Calculate the resistance of the filament lamp when the potential difference across it is 2.8...
• 12M.2.SL.TZ1.9c: Two identical filament lamps are connected in series with a cell of emf 6.0 V and negligible...
• 12M.2.HL.TZ2.7a: The magnitude of gravitational field strength g is defined from the equation shown...
• 12M.2.HL.TZ2.7b: In a simple model of the hydrogen atom, the electron is regarded as being in a circular orbit...
• 11N.2.SL.TZ0.2b: A tungsten filament lamp is marked 6.0 V, 15 W. (i) Show that the resistance of the lamp at its...
• 11N.2.HL.TZ0.10d: (d) The diagram shows part of a potential divider circuit used to measure the current-potential...
• 11N.2.SL.TZ0.2c: The diagram shows part of a potential divider circuit used to measure the current-potential...
• 11N.2.SL.TZ0.2a: Tungsten is a conductor used as the filament of an electric lamp. The filament of the lamp is...
• 11N.2.SL.TZ0.9b: The electric motor can be adjusted such that, after an initial acceleration, the load moves at...
• 11N.2.HL.TZ0.10a: (i) On the diagram above, draw an arrow to show the direction of the electric field at point...
• 11N.2.HL.TZ0.10e: A student sets up a different circuit to measure the I–V graph. The cell has an emf of 6.0 V and...
• 12N.2.SL.TZ0.2a: State how a magnetic field arises.
• 12N.2.SL.TZ0.8a: State Ohm’s law.
• 12N.2.SL.TZ0.2b: On the diagram below, sketch the magnetic field pattern around the long straight current-carrying...
• 12N.2.SL.TZ0.8b: A lighting system is designed so that additional lamps can be added in parallel. The diagram...
• 13N.2.SL.TZ0.5d: Outline, with reference to the graph and to Ohm’s law, whether or not each component is ohmic.
• 13N.2.SL.TZ0.5e: Components X and Y are connected in parallel. The parallel combination is then connected in...
• 13N.2.SL.TZ0.4a: Define electric field strength.
• 13N.2.SL.TZ0.4b: A simple model of the proton is that of a sphere of radius 1.0×10–15m with charge concentrated at...
• 13N.2.SL.TZ0.4c: Protons travelling with a speed of 3.9×106ms–1 enter the region between two charged parallel...
• 11M.1.SL.TZ1.17: One electronvolt is equal to A. 1.6×10−19 C.B. 1.6×10−19 J.C. 1.6×10−19 V.D. 1.6×10−19 W.
• 11M.1.SL.TZ1.21: An electron passes the north pole of a bar magnet as shown below. What is the direction of the...
• 11M.1.SL.TZ1.18: A battery of internal resistance 2 Ω is connected to an external resistance of 10 Ω. The...
• 11M.1.HL.TZ1.22: A positively charged particle follows a circular path as shown below. Which of the following...
• 11M.2.SL.TZ1.2a: The electron’s path while in the region of magnetic field is a quarter circle. Show that the (i)...
• 11M.2.SL.TZ1.8b: A battery of emf ε and negligible internal resistance is connected in series to two...
• 11M.2.SL.TZ1.8c: The graph shows the I-V characteristics of two conductors, X and Y. On the axes below, sketch...
• 11M.2.SL.TZ1.8d: The conductors in (c) are connected in series to a battery of emf ε and negligible...
• 11M.2.SL.TZ1.8a: Define (i) electromotive force (emf ) of a battery. (ii) electrical resistance of a conductor.