In D.C. machines the residual magnetism is of the order of
A) 2 to 3 per cent
B) 10 to 15 per cent
C) 20 to 25 per cent
D) 50 to 75 per cent
Correct Answer:
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Q2: Which D.C. motor is generally preferred for
Q3: Three point starter can be used for
A)series
Q4: Sparking, is discouraged in a D.C. motor
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Q8: In a differentially compounded D.C. motor, if
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Q11: As -the load is increased the speed
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