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Magnetic Effects of Electric Current
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02/08/2021 12:48 pm
Topic starter
(a) Explain why, it is more dangerous to touch the live wire of a mains supply rather than the neutral wire.
(b) Why is it safe for birds to sit on naked power lines fixed atop tall electric poles?
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02/08/2021 12:50 pm
(a) It is more dangerous to touch the live wire rather than the neutral wire because live wire has a high potential of 220V, where as neutral wire has zero potential.
(b) Bird’s body is not connected to the earth, so no current flows through its body into the earth. So, it is safe for birds to sit on naked power lines fixed atop tall electric poles.