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4.2.5 Electrical energy and electrical power

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Question 32

The potential difference (p.d.) across a small electric heater is 24 V. The current in the heater is 1.5 A.

How much energy is transferred by the heater in 2.0 hours2.0\text{ hours}2.0 hours?

A

4320 J4320\text{ J}4320 J

B

4320 W4320\text{ W}4320 W

C

259,200 J259,200\text{ J}259,200 J

D

259,200 W259,200\text{ W}259,200 W

Markscheme

4.2.5 Electrical energy and electrical power Questions

  1. IGCSE
  2. /Physics
  3. /4.2.5 Electrical energy and electrical power

69 exam-style questions on CIE IGCSE Physics 4.2.5 Electrical energy and electrical power. Each one has a worked solution and a mark scheme showing where the marks go.

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