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4.3.2a Series circuits

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Question 7

In a circuit, a power supply splits into two parallel branches: a left path and a right path.

  • The right path contains fuse D in series with Lamp 3.
  • The left path contains fuse A. After fuse A, this left path splits into two parallel sub-branches:
    • The first sub-branch contains fuse B in series with Lamp 1.
    • The second sub-branch contains fuse C in series with Lamp 2.

All paths recombine to return to the power supply. Only one of the fuses has blown, and as a result, only one of the lamps is lit.

Which fuse has blown?

A

A

B

B

C

C

D

D

Markscheme

4.3.2a Series circuits Questions

  1. IGCSE
  2. /Physics
  3. /4.3.2a Series circuits

52 exam-style questions on CIE IGCSE Physics 4.3.2a Series circuits. Each one has a worked solution and a mark scheme showing where the marks go.

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