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Cambridge IGCSE Physics

4.2Electrical quantities

Electrical quantities in Cambridge IGCSE Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic67 practice questions5 lessons

In this topic

Lessons

  • Electric charge and electrostatics

    30 min

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  • Electric current

    25 min

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  • E.m.f. and potential difference

    25 min

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  • Resistance and Ohm's law

    32 min

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  • Electrical power, energy and cost

    30 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Electrical quantities: sample question

1 mark

A charge of 45 C passes through a lamp in 18 s. What is the current?

Answer in A.

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