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4.3 Electric circuits

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Question 24

An experimenter wishes to measure the electric current flowing through a resistor and the potential difference (p.d.) across it. The experimenter already has a power supply, the resistor, and connecting wires. What additional measuring instruments are required?

A

an ammeter only

B

a voltmeter only

C

an ammeter and a voltmeter

D

an ammeter and an ohmmeter

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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