The condition for maximum power in case of D.C. motor is
A. back e.m.f. = 2 x supply voltage
B. back e.m.f. =(½) x supply voltage
C. supply voltage =(½) x back e.m.f.
D. supply voltage = back e.m.f.
Answer:B
The condition for maximum power in case of D.C. motor is
A. back e.m.f. = 2 x supply voltage B. back e.m.f. =(½) x supply voltage C. supply voltage =(½) x back e.m.f. D. supply voltage = back e.m.f.