Star-delta starting of motors is not possible in case of
A). Single phase motors
B). Variable speed motors
C). Low horse power motors
D). High speed motors
1. A capacitor blocks A.C. but passes D.C.
2. The value of VBE ___________
5. Why are the D.C. motors preferred for traction applications?
6. The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is
7. The average half-cycle value of a sine wave with a 40 V peak is
8. In a D.C. generator all of the following could be the effects of iron losses except