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Date May 2010 Marks available 1 Reference code 10M.1.SL.TZ1.17
Level Standard level Paper Paper 1 Time zone Time zone 1
Command term Question number 17 Adapted from N/A

Question

A resistor of resistance \({\text{12 }}\Omega \) is connected in series with a cell of negligible internal resistance. The power dissipated in the resistor is \(P\). The resistor is replaced with a resistor of resistance \({\text{3.0 }}\Omega \). What is the power dissipated in this resistor?

A.     \(0.25{\text{ }}P\)

B.     \(P\)

C.     \(2.0{\text{ }}P\)

D.     \(4.0{\text{ }}P\)

Markscheme

D

Examiners report

[N/A]

Syllabus sections

Core » Topic 5: Electricity and magnetism » 5.2 – Heating effect of electric currents
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