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What is a transformer ? Mention two sour...

What is a transformer ? Mention two sources of energy loss in a transformer

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It is a device used to increase or decrease the AC voltages.
Sources of Energy Loss :
(i) Magnetic flux leakage loss.
(ii) Ohmic loss/loss due to the resistance of the windings (turnings)/Joule.s heat loss.
(iii) Eddy current loss.
(iv) Hysteresis loss.
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