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2.1 Current, potential difference and resistance

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Question 27
H

A student plots current on the y-axis against potential difference on the x-axis for a fixed resistor at constant temperature. The line is straight, passes through the origin and has a gradient of 0.25 A/V. What is the resistance of the resistor?

[1]
A

4.0 Ω4.0\ \Omega4.0 Ω, because the resistance is one divided by the gradient

B

4.0 Ω4.0\ \Omega4.0 Ω, because the resistance is equal to the gradient

C

0.25 Ω0.25\ \Omega0.25 Ω, because the resistance is one divided by the gradient

D

0.25 Ω0.25\ \Omega0.25 Ω, because the resistance is equal to the gradient

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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