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Question

Most of the electricity carrying wires near highways do not have a plastic covering like the wires used at homes.But there is no substantial loss of energy because:

A
air is a bad insulator of electricity
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B
air is a bad conductor of electricity
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C
electricity flows very fast near highways.
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D
Both B & C
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Solution

The correct option is B air is a bad conductor of electricity
Most of the electricity carrying wires near highways do not have a plastic covering like the wires used at homes.But there is no substantial loss of energy becauseair is a bad conductor of electricityair particles also contains electrons but in less amount therefore it act as insulator

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