6- In a stepper motor, how is the speed of rotation determined? a) By the current supplied to the motor. b) By the magnitude of the voltage applied. c) By the load applied to the motor. d) By the frequency of the waveforms used. 7- A transformer core is laminated to a) reduce hysteresis loss b) reduce eddy current losses c) reduce copper losses d) reduce all above losses 8- An induction motor with 580 r.p.m. speed at 60 Hz will have a) 8 poles b) 6 poles c) 4 poles d) 2 poles 9- If any two phases for an induction motor are interchanged a) the motor will run in reverse direction b) the motor will run at reduced speed c) the motor will not run d) the motor will burn 10- No-Load speed of which of the following motor will be highest? a) Shunt motor b) Series motor c) Short-Shunt compound motor d) Long-Shunt compound motor

Q: 1. A 240-V d.c. shunt motor has an armature resistance of 0.4 2 and field resistance of 110 Q. At no…

A:

Q: A 220 V DC series motor runs drawing a current of 30 A from the supply. Armature and field circuit…

A: It is given that:

Q: 1. A fundamental DC motor is shown below. VTerminal = 90V. The running current, I = 5 A and the…

A:

Q: A series DC motor has a series-field winding of 25 turns per pole. Its armature resistance is 0.15…

A:

Q: A shunt DC motor is supplied by 520V terminals voltage and is used to supply a mechanical load with…

A: The solution can be achieved as follows.

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.