The inrush current of a transformer at no load is maximum if the supply voltage is switched on

The inrush current of a transformer at no load is maximum if the supply voltage is switched on 

(1) at peak voltage value (2) at zero voltage value (3) at half voltage value (4) at 0.866 time voltage value
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2 Answers

Answer :

The inrush current of a transformer at no load is maximum if the supply voltage is switched on at zero voltage value

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Answer :

At 0.866 time voltage value
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