SSC JE EE Quiz: Electrical and Electric Instrumentation Booster Quiz-13

Power consumption in moving iron instruments is: -

A cavity magnetron uses strapping to

A Lissajous pattern on the oscilloscope is stationary and has 6 vertical maximum values and 5 horizontal maximum values. The frequency of horizontal input is 1500 Hz. The frequency of vertical input is: -

An indicating instrument is more sensitive if its torque to weight ratio is: -

Two wattmeter method can be used to measure the total power delivered to: -

Which of the following instruments has the same calibration in AC and DC?

If two Wattmeter is used to measure three phase power read equal reading, then the power factor is:

Creeping in a single-phase induction type energy meter may be due to

In which of the following transformers, is the secondary winding cannot be open circuited.

A wattmeter having a range of 4000 W has an error of ±2% of full-scale deflection. If the true power is 2000 W, what would be the range of the reading?