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B
Transfers charge from a charged body to the Earth.
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C
Both A and B.
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D
Neither A nor B.
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Solution
The correct option is B Both A and B.
Earthing is used to protect you from an electric shock. It does this by providing a path (a protective conductor) for excess charge to flow to earth.
Earthing is the process of transferring charges to the Earth. During lightning, if earthing is not proper, we will get electrical shocks if lightning strikes because that excess charge due to lightning will not be able to go to ground and will cause an electric shock.