Question

The shaft torque (T) in a d.c. motor is less than total armature torque (T) because of in the motor.

(i) Cu losses

(ii) field losses

(i) iron and friction losses
(iv) none of the above​

Answer 1

Answer:

option c is the correct answer hope it helps you

Answer 2

The shaft torque (Ts) in a d.c. motor is less than total armature torque (T) because of in the motor iron and friction losses and option (iii) is correct.

Explanation:

In a DC Motor, the complete electromagnetic torque (T) developed in the armature and is not available on the shaft. Because of  a part of the complete electromagnetic torque (T)  is lost to overcome the iron and mechanical (friction and windage) losses.

Thus, shaft torque (Ts) is  less than the torque developed in the armature.

PROJECT CODE #SPJ 3