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Question
Observe the following circuit given in the figure.
Current does not flow in the circuit, if there is a gap between the two wires. Does it indicate that air is a poor conductor of electricity? Does air never conduct electricity? Explain.
Solution
Yes, if current is not flowing through the air gap between the wires, it means that air is a poor conductor of electricity. No, air conducts electricity only when there is great voltage or there is some moisture in air, such as during lightning.
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