In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be_____________?

Related Mcqs:

Differentially compound D.C. motors can find applications requiring___________?

A. high starting torque B. low starting torque C. variable speed D. frequent on-off cycles...

The ratio of starting torque to full-load torque is least in case of____________?

A. series motors B. shunt motors C. compound motors D. none of the above...

If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens__________?

A. nothing will happen to the motor B. this will make armature to take heavy current, possibly burning it C. this will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses D. motor will run at very slow speed...

If I2 be the armature current, then speed of a D.C. shunt motor is_______________?

A. independent of Ia B. proportional to la C. varies as (Ia) D. varies as la...

In variable speed motor___________?

A. a stronger commutating field is needed at low speed than at high speed B. a weaker commutating field is needed at low speed than at high speed C. same commutating field is needed at low speed than at high speed D. none of the above is correct...