## Electrical Machines In a stepper motor the detente torque means

minimum of the static torque with the phase winding excited.
maximum of the static torque with the phase winding excited.
minimum of the static torque with the phase winding unexcited.
maximum of the static torque with the phase winding unexcited.

## Electrical Machines A triangular mmf wave is produced in the air gap of an electric machine. Such wave is produced by

rotor of a dc machine.
rotor of an synchronous machine.
stator of a dc machine.
stator of a induction machine.

## Electrical Machines For a DC Motor for constant load torque, what will happen to the armature current if armature resistance increases?

Increases.
Remain unchanged
None of above.
Decreases.

110 VA
100 VA
500 VA
550 VA

1500 Volt.
0 Volt.
2000 Volt.
1600 Volt.

## Electrical Machines Which of the following statements is/are correct statements?

EMF per turn in HV winding is more than EMF per turn in LV winding
All of these
EMF per turn in HV winding is less than EMF per turn in LV winding
EMF per turn in both the windings are equal