Q.

In an electric motor, the electromagnetic torque developed is 

  • AIn opposite direction to both load torque and frictional torque
  • BIn the same direction as the load torque but in opposite direction to frictional torque 
  • CIn the same direction is the load torque and frictional torque
  • DIn the same directional as the frictional torque but in the opposite direction to the load torque
Correct Answer : (A)

In opposite direction to both load torque and frictional torque

Hints :

In an electric motor, the electromagnetic torque developed is in opposite direction to both load torque and frictional torque.

Previous

A dc shunt motor is driving a constant torque load with normal excitation. If the filed current is halved then the motor will run at 

Next

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

Join The Discussion