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10.2 Resistance

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Question 11
F

A student sets up the circuit shown in the Figure.

Figure

image

a.

Give the name of component X.

[1]
b.

The student increases the resistance of component X.

Describe what happens to the reading on the ammeter and to the brightness of the lamp.

[2]
c.

Explain why changing the resistance of component X changes the current in the circuit.

[2]
d.

The potential difference of the battery is 4.5 V.

The total resistance of the circuit is 15 Ω.

Calculate the current in the circuit.

[2]
Markscheme

10.2 Resistance Questions

  1. GCSE
  2. /Physics
  3. /10.2 Resistance

81 exam-style questions on Edexcel GCSE Physics 10.2 Resistance, covering 10.2.1 Current in a circuit and conservation at junctions, 10.2.2 Resistance and variable resistors, 10.2.3 Series and parallel resistance, 10.2.4 I–V characteristics of components, and 10.2.5 LDRs and thermistors. Each one has a worked solution and a mark scheme showing where the marks go.

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