SSC JE 2019-20 Technical Quiz 33

What will be the value of current (in A) in a 50cm long air-core solenoid, if the value of magnetic field at the center of the solenoid is 5 mT and the solenoid has 300 turns?

What is the root mean square value of the voltage waveform (in V) given in the figure below?

Rating of fuse wire is expressed in terms of________.

In case of staircase wiring which type of switch is used?

Light is produced in electric discharge lamps by_____.

What is the percentage voltage error of a potential transformer with system voltage of 6,600 V and having turns ratio of 50, if the measured secondary side voltage is 130 V?

The operation of a Megger is based on which of the following?

The current from the stator of an alternator is taken out to the external load circuit through

In a transformer the voltage regulation will be zero when it operates at

The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be