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4.2 Electrical quantities

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Question 310

A portable power pack has a label showing several specifications:

24 V8 kg360 kJ120 A \boxed{24\text{ V} \quad 8\text{ kg} \quad 360\text{ kJ} \quad 120\text{ A}} 24 V8 kg360 kJ120 A​

One of these specifications is the electromotive force (e.m.f.) of the power pack's internal battery.

What is the e.m.f. of the battery?

A

8 kg8\text{ kg}8 kg

B

120 A120\text{ A}120 A

C

24 V24\text{ V}24 V

D

360 kJ360\text{ kJ}360 kJ

Markscheme

4.2 Electrical quantities Questions

  1. IGCSE
  2. /Physics
  3. /4.2 Electrical quantities

452 exam-style questions on CIE IGCSE Physics 4.2 Electrical quantities, covering 4.2.1a Positive and negative charge, 4.2.1b Charging by friction and detecting charge, 4.2.1c Electrical conductors and insulators, 4.2.1d Electric fields and electric field patterns, 4.2.2a Electric current, charge and measuring current, 4.2.2b Conduction in metals and the direction of current, 4.2.2c Direct current and alternating current, 4.2.3a Electromotive force, 4.2.3b Potential difference and voltmeters, 4.2.4a Resistance, 4.2.4b Resistance of a metallic wire, 4.2.4c Current–voltage graphs, and 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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