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4.3 Electric circuits

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Question 19

To determine the electrical power of a lamp in a circuit, a student needs to measure both the potential difference across the lamp and the current passing through it.

Which of the following describes the correct connection for the measuring instruments?

A

Both the voltmeter and the ammeter are connected in series with the lamp.

B

Both the voltmeter and the ammeter are connected in parallel with the lamp.

C

The voltmeter is connected in parallel with the lamp and the ammeter is connected in series with the lamp.

D

The voltmeter is connected in series with the lamp and the ammeter is connected in parallel with the lamp.

Markscheme

4.3 Electric circuits Questions

  1. IGCSE
  2. /Physics
  3. /4.3 Electric circuits

136 exam-style questions on CIE IGCSE Physics 4.3 Electric circuits, covering 4.3.1a Circuit diagrams and circuit components, 4.3.2a Series circuits, 4.3.2b Parallel circuits, 4.3.2c Current and potential difference in circuits, 4.3.2d Combined resistance of resistors in parallel, and 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.

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