If power input to the d.c. field at a 15 kVA (input) synchronous

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If power input to the d.c. field at a 15 kVA (input) synchronous motor is 6 per cent of the rates a.c. input, then direct current that excites the field at 120 volt, is

1. 7.5 amps
2. 125 amps
3. 15 amps
4. none of these

Correct Option: A

NA