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Cambridge IGCSE Physics practice

Paper 4 structured question: Resistance

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Resistance

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Paper 4Theory (Extended)1 marks

A conductor has a resistance of 10 ohms with a certain length and cross-sectional area.

Description

Effect of Changing Cross-Sectional Area

If the cross-sectional area of the conductor is increased, describe the effect on resistance.

  1. a

    State the effect on resistance when the cross-sectional area is increased.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Resistance

Paper 4Theory (Extended)1 marks

Description

Resistance in Conductors

A metallic conductor has a length of 2 meters and a cross-sectional area of 1 mm². If the length is increased to 4 meters while keeping the area constant, what will happen to the resistance?

  1. a

    State the effect on resistance when the length is increased to 4 meters.

    Aim for approximately 1 distinct marking point.

    [1]