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4.3 Electric circuits

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Question 43

A string of decorative lamps is connected to a power supply. What is a disadvantage of connecting these lamps in a series circuit rather than a parallel circuit?

A

The total resistance of the circuit is reduced, which can cause overheating.

B

If one lamp breaks, all other lamps in the circuit will stop working.

C

Each lamp in the circuit receives the full voltage of the power supply.

D

Multiple switches are required to turn all the lamps on at the same time.

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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