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4.3 Electric circuits

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Question 34

An engineer wants to determine the electrical resistance of a thermistor.

Which configuration of meters is correct to measure the current through the thermistor and the potential difference (voltage) across it?

A

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

B

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

C

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

D

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

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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