Energy Conversion

A cell used to detect infrared radiation, either its generated voltage or its change of resistance may be used as a measure of the intensity of the radiation.

A galvanic cell resulting from difference in potential between adjacent areas on the surface of a metal immersed in an electrolyte.

Which motor is used to start heavy loads?

When load is removed, the motor that will run at the highest speed is the _____ motor.

The friction and windage losses in a dc motor depends upon

If a transformer core has air gaps, then

The effect of leakage flux in a transformer is to

The iron losses in a dc motor depend upon

The greatest percentage of power loss in a dc motor is due to

Excessive sparking at the brushes may be caused due to

The temperature rise of a transformer is directly proportional to

A graphical relation between the generated emf and the field current of a machine.

Majority of alternators in use have

The stator of an alternator is identical to that of a

Excessive motor vibration is caused by

Hot bearings of a dc motor may be caused by

Intermittent sparking at the brushes of a dc motor may be caused due to

When load on a transformer is increased, the eddy current loss

The yoke of a dc machine is made of

The armature of a dc machine is made of