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10.2 Resistance

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Question 9
F

A student investigates how the current in a filament lamp varies with the potential difference across it.

The Figure shows the student's results.

Figure

image

a.

Use the Figure to determine the current in the lamp when the potential difference is 4.0 V.

[1]
b.

Calculate the resistance of the lamp when the potential difference is 4.0 V.

[2]
c.

Calculate the resistance of the lamp when the potential difference is 1.0 V.

[2]
d.

Explain why the resistance of the lamp changes as the potential difference increases.

[2]
e.

The student repeats the investigation with a fixed resistor at constant temperature.

Describe how the graph for the fixed resistor would be different from the graph in the Figure.

[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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