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4.2.5 Electrical energy and electrical power

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Question 28

A resistor converts 480 J of energy when there is a current of 4.0 A in it. The potential difference across the resistor is 8.0 V.

For how long is there this current in the resistor?

A

0.067 s0.067\text{ s}0.067 s

B

15 s15\text{ s}15 s

C

240 s240\text{ s}240 s

D

960 s960\text{ s}960 s

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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