121.
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. = | x supply voltage
C
supply voltage = | x back e.m.f.
D
supply voltage = back e.m.f.
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121 practice sets · Page 7 of 7
The condition for maximum power in case of D.C. motor is
back e.m.f. = 2 x supply voltage
back e.m.f. = | x supply voltage
supply voltage = | x back e.m.f.
supply voltage = back e.m.f.