Q.

The most economical method of electric braking is 

  • APlugging 
  • BDynamic braking with separate excitation
  • CDynamic braking with self-excitation
  • DRegenerative braking
Correct Answer : (D)

Regenerative braking

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A dc shunt motor is driving a mechanical load at rated voltage with normal excitation. If the load torque is increased to double of the normal one, the speed of the motor will

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