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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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