Q.

A bird sitting on a high tension electric wire does not get electrocuted because –

A. it has high resistance
B. the body is earthed
C. it does not form a closed path for the flow of current
D. its feet are good insulators
Answer» C. it does not form a closed path for the flow of current
Explanation: Electricity travels from a place of high voltage to low voltage, just as water travels from high elevation to low elevation. A bird, or any living thing, that touches a wire (where electricity is moving from high voltage to low voltage) and also touches the ground (a place with no voltage) creates a path that allows the electricity to travel through that body and into the place with no voltage. When electricity travels through a body in this fashion, electrocution takes place, and the bird can die.
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