If a sinusoidal voltage source is connected to a power transformer,

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If a sinusoidal voltage source is connected to a power transformer, its no-load current would be

1. sinusoidal and lagging the voltage by 90°
2. sinusoidal and lagging the voltage by less than 90°
3. rich in third harmonic and its fundamental would lag the voltage by 90°
4. rich in third harmonic and its fundamental would lag the voltage by less than 90°

Correct Option: C

NA