Consider the following statements:
If the terminal voltage of a dc shunt motor is halved with the load torque varying as the square of speed, then
1. Speed is halved
2. Speed remains unaltered
3. Armature currents is doubled
4. Armature current remains unaltered
Of these statements1
1 and 3 are correct
2
1 and 4 are correct
3
2 and 3 are correct
4
2 and 4 are correct