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Electrical safety

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Question 122

An electrical appliance is powered from a mains supply. The appliance normally uses a current of 5 A, but the current briefly rises to 7 A at the instant the appliance is switched on. The cable to the appliance is designed for currents up to 10 A.

The fuses available to protect the cable are rated at 3 A, 5 A, 8 A and 13 A.

Which fuse should be used?

A

3 A3\text{ A}3 A

B

5 A5\text{ A}5 A

C

8 A8\text{ A}8 A

D

13 A13\text{ A}13 A

Markscheme

Electrical safety Questions

  1. IGCSE
  2. /Physics
  3. /Electrical safety

135 exam-style questions on CIE IGCSE Physics Electrical safety, covering Electrical safety. Each one has a worked solution and a mark scheme showing where the marks go.

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