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1)Why electric shock is feel ?? n in a Electric Train why
we didnt feel that ?
2)What is the reason for transformer Noise ??
3)What is relation b/w Transmission Lines & Communication
Lines ?
4)Which material is used for making Transformer oil & How u
measure its dielectric strength & Name the test ?
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Answer Posted / arjun chaudhary
Ans 2) magnetostriction (when there is changing magnetic
field due to alternating current vibration occurs due to
which sound comes at full load ) eg. we use two black
magnets (two magnets so same length and effect) when we
throw in air we get the hissing sound because of changing
magnetic field .
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