Question

# When Ketaki was about to switch on the fan in her room, her mother stopped her from doing so. She told her that she should first dry her hands as they were wet, before touching the electric switch. Was Ketaki's mother right or not? (a) Yes. The water can damage the fan. (b) Yes. Water is a good conductor of electricity. She could get a severe shock. (c) No. While using electric appliances and switches, wet or dry does not make any difference. (d) No. Water is a poor conductor of electricity, hence it is safe to switch on the fan using wet hands.

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Solution

## (b) Yes. Water is a good conductor of electricity. She could get a shock.Ketaki's mother was right. Ketaki should not switch on the fan with wet hands because water is a good conductor of electricity and current can flow from the switch to Ketaki's hand. This current could give her a severe shock.

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