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2.1 Current, potential difference and resistance

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Question 28
F

An electric heater has a resistance of 24 Ω. It is connected to a 12 V supply.

a.

Calculate the current in the heater.

[2]
b.

A second heater has a smaller resistance than the first heater. It is connected to the same 12 V supply. Give the effect this has on the current.

[1]
c.

Explain your answer to part b.

[1]
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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