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Higher Study | Electrical Machines | Single Phase Motor and Special Machines

A universal motor is one which
The speed of a universal motor is generally reduced by using
The starting torque and power factor of shaded pole induction motor
The rotor for a hysteresis motor
Why is a centrifugal switch used in a single-phase induction motor?
A universal motor is said to be inductively compensated when compensating winding:
In a single-phase repulsion motor, torque is developed on the rotor when the brush axis is fixed:
A 8-kW, 4-pole, 220-V, 50-Hz reluctance motor has a torque angle of 30° when operating under rated load conditions. Calculate the load torque.
In a single-phase single-winding induction machine, single-phase AC supply is applied to the machine when the rotor is at rest. Choose the INCORRECT statement.
When a motor-speed of 5000 rpm is required using A.C. supply, the choice of the motor is
If the capacitor of a capacitor-start single-phase motor fails to open when the motor picks up speed,
When a single-phase supply is connected across a single-phase winding, the nature of the magnetic field produced is:
When the load on a reluctance motor is increased so that it cannot maintain synchronous speed, the motor will
Which of the machines given in the options has the sketched phasor diagram (a) at the time of starting and (b) at the running condition, where Ia is the current in auxiliary winding and Im is the current in main winding?
The circuit shown below represents
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