Explain why the bulb would not glow in the arrangement shown in figure below.
[2 marks]

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Solution

The bulb will not glow in the given arrangement because the holder of the tester/screw driver used in the connection is made of plastic which is an insulator. [1 mark]
We know that the insulators do not allow the electric current to pass through them. Thus, the current will not flow in the circuit.
[1 mark]

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