A) Touching the switch of a heater with wet hands.
B) Standing on a wooden stool to check a plug point.
C) Poking a metal rod into an electrical socket.
D) Touching the water in which immersion heater is kept.
Correct Answer: B
Solution :
To check a plug point, wooden stool is used to prevent electric shock. Wood is a bad conductor of electricity.You need to login to perform this action.
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