Standard Science Primary 5 Systems

What is the primary function of a switch in an electrical circuit?

A To provide electrical energy to the circuit.
B To change electrical energy into light energy.
C To open and close the circuit.
D To act as an electrical insulator.
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Worked Solution

Step 1: A switch controls the flow of electricity. Step 2: When closed, it completes the circuit allowing current to flow. Step 3: When open, it breaks the circuit, stopping the current.

Correct answer: To open and close the circuit.

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