The external rotor resistance is

A 10kW,400V, 4-pole delta connected induction motor gave the following test results:
No-load test: 400V, 8A, 250 W
Blocked rotor test: 90V,35A,1350 W
The dc resistance per phase is 0.6 ohms. The no load rotational losses is

The speed characteristic of the induction motor is analogous to

Number of the slip rings required for the satisfied operation of an induction motor is

A 10kW,400V, 4-pole delta connected induction motor gave the following test results:
No-load test: 400V, 8A, 250 W
Blocked rotor test: 90V,35A,1350 W
The dc resistance per phase is 0.6 ohms. The effective stator resistance is

Blocked rotor test comprises of

The speed of the squirrel-cage induction motor can be changed by varying slip.

I. An induction can never operate at leading power factor.
II. Speed of the induction motor can be made more than synchronous speed and still it will work as motor.

If the squirrel-cage induction motor is replaced by a solid cylinder in an induction motor its slip will