engineering recuitment MAHATRANSCO AE Electrical Mock Test Electrical Machines Single Phase Motor and Special Machines Universal Motors
A single-phase universal motor is operated with AC source. The torque of the motor during the negative half cycle of the input current:
1
Follows the same pattern of the torque caused by the positive half-cycle of the input current
2
is half of the torque caused by the positive half cycle of the input current
3
is negative
4
is zero
5
None of the above