Question 37
Question 37 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
4. Electricity and magnet...
4.5.3. Magnetic effect of a current

Describe how the magnetic effect of a current is used in relays and loudspeakers and give examples of their application

4. Electricity and magnet...
4.4.2. Electrical safety

Know that a mains circuit consists of a live wire (line wire), a neutral wire and an earth wire and explain why a switch must be connected into the live wire for the circuit to be switched off safely

4. Electricity and magnet...
4.4.1. Uses of electricity

State the advantages of connecting lamps in parallel in a lighting circuit