. The mechanical power developed by a d.c. motor is maximum when the back e.m.f. is Options: A . &nbspequal to the applied voltage B . &nbspequal to zero C . &nbspequal to half the applied voltage D . &nbspapproaching the value of the applied voltage

. The mechanical power developed by a d.c. motor is maximum when the back

Question - . The mechanical power developed by a d.c. motor is maximum when the back e.m.f. is

Options:

A . equal to the applied voltage

B . equal to zero

C . equal to half the applied voltage

D . approaching the value of the applied voltage

Answer: Option B

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