Question

join the free ends of the tester together for a moment this completes the circuit of the tester and the bulb should glow however if the bulb does not glow it means

Answer 1

tester is not working
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Answer 2

Answer:-

In this activity, if the bulb does not glow, it means that either the connections of the circuit are loose or the bulb is fused or cells are used up. If the tester is working, it can be used to test the materials, i.e., whether it is a conductor or non-conductor of electricity.

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