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2.1 Current, potential difference and resistance

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Question 6

Two electric heating elements, P and Q, are tested separately at the same power supply setting. The current through P is greater than the current through Q. Which statement is correct?

[1]
A

Element P has the smaller resistance, because a greater potential difference must be across P to give it more current

B

Element Q has the smaller resistance, because less of the current is used up as the charge passes through Q

C

The resistances cannot be compared unless the current through both elements is the same

D

Element P has the smaller resistance, because at the same potential difference it carries the greater current

Markscheme

2.1 Current, potential difference and resistance Questions

  1. GCSE
  2. /Physics
  3. /2.1 Current, potential difference and resistance

82 exam-style questions on AQA GCSE Physics 2.1 Current, potential difference and resistance, covering 2.1.1 Standard circuit diagram symbols, 2.1.2 Electrical charge and current, 2.1.3 Current, resistance and potential difference, and 2.1.4 Resistors. Each one has a worked solution and a mark scheme showing where the marks go.

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