Cambridge IGCSE Physics
4.3.3Action and use of circuit components
Action and use of circuit components in Cambridge IGCSE Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic13 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 4.3.3.1Know that, for a fixed current, the p.d. across a conductor increases as its resistance increases.
- 4.3.3.2Supplement: describe how a variable potential divider works.
- 4.3.3.3Supplement: use R1/R2 = V1/V2 for two resistors used as a potential divider.
Lessons
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Potential dividers and sensors
30 min
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Sample question
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