Zero regulation in transformer happens at

At unity power factor, regulation of transformer is

Value of earth resistance should be as high as possible.

4 terminal fall of potential method gives better result than 3 terminal fall of potential method.

Permissible % error range for class 2 induction type energymeter is

Braking torque in induction type energy meter is directly proportional to

Energymeter constant is

Both earth resistance and earth resistivity can be measured by using fall of potential method.

Which machine will have more efficiency?

The generator used for arc welding is ?

IS stands for

MCCB stands for

In MCB, short circuit protection is provided by,

OCC of the DC generator is the plot between

For a dc shunt generator to build up voltage, shunt field resistance should be ------------- critical field resistance.

------- is the speed at which shunt field resistance becomes equal to critical field resistance.

Induction motor is self starting.

Maximum permissible earth resistance value for domestic applications is ?

Synchronous motor is self starting.