When the armature of a D.C. motor rotates, e.m.f. induced is
A) self-induced e.m.f.
B) mutually induced e.m.f.
C) back e.m.f.
D) none of the above
Correct Answer:
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Q15: Hopkinson's test on D.C. machines is conducted
Q16: During rheostat braking of D.C. series motors
A)motor
Q17: For which types of D.C. motor, dynamic
Q18: Which method of braking is generally used
Q19: In variable speed motor
A)a stronger commutating field
Q21: Where D.C. motor of H.P. 12 or
Q22: If a D.C. shunt motor is working
Q23: D.C. motor is to drive a load
Q24: D.C. motor is to a drive a
Q25: Which D.C. motor has got maximum self
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