Q
The condition for maximum power in case of D.C. motor is______________?
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A
A. Back e.m.f. = 2 x supply voltage
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B
B. Back e.m.f. = | x supply voltage
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C
C. Supply voltage = | x back e.m.f
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D
D. Supply voltage = back e.m.f
Correct Answer:
B. B. Back e.m.f. = | x supply voltage