SSC JE 2019-20 Technical Quiz 92

Which of the following instruments is used for the measurement of Insulation resistance?

Breather is provided in a transformer to

The primary and secondary windings of a transformer are

What type not operate a direct-on-line starter consists of a coil operated

A cable has an insulation of relative permittivity 2. If the insulation is replaced by one of relative permittivity 4, the capacitance of the cable will become

What will be the self-inductance (in H) of a 2 m long air-core solenoid, if the diameter of the solenoid is 25 cm and has 600 turns?

What will be the mutual inductance (in mH) between the two coils. If a current of  passes through one of the coil, which induces a maximum EMF of  in the second coil?

Which of the following is the CORRECT formula for permeance?

Which of the following is the reciprocal of reluctance?

An over excited synchronous motor is used for_______.