Answer Posted / r.ramadoss

Netural is providing in the transformer for passing 3rd
assymentrical current , if the netural was not present ,
due to the surge voltage or un balanced voltage the
transformer life time will be decreased

If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

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