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4.3 Electric circuits

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Question 10

A student wishes to measure first the electric current flowing through a lamp, and then the potential difference (p.d.) across it.

The student already has the lamp, a power supply, and some connecting wires.

What other measuring instruments does the student need?

A

a voltmeter only

B

an ammeter and a voltmeter

C

an ammeter only

D

an ohmmeter and an ammeter

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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