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Date May 2011 Marks available 1 Reference code 11M.1.HL.TZ2.20
Level Higher level Paper Paper 1 Time zone Time zone 2
Command term Question number 20 Adapted from N/A

Question

Two resistors, of resistance R1 and R2, are connected in series with a cell of emf ε and negligible internal resistance.
 
 
Which expression gives the potential difference across the resistor of resistance R1?
 

A. \(\left( {\frac{{{R_1}}}{{{R_1} + {R_2}}}} \right)\varepsilon \)


B. \(\left( {\frac{{{R_1} + {R_2}}}{{{R_1}}}} \right)\varepsilon \)


C. \(\left( {\frac{{{R_2}}}{{{R_1} + {R_2}}}} \right)\varepsilon \)


D. \(\left( {\frac{{{R_1} + {R_2}}}{{{R_2}}}} \right)\varepsilon \)

Markscheme

A

Examiners report

 

Syllabus sections

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