The disc of an instrument using eddy current damping should be of________________?

Related Mcqs:

The use of _________ instruments is merely confined within laboratories as standardizing instruments?

A. absolute B. indicating C. recording D. integrating E. none of the above...

For handling greater currents induction wattmeters are used in conjunction with______________?

A. potential transformers B. current transformers C. power transformers D. either of the above E. none of the above...

The pressure coil of a wattmeter should be connected on the supply side of the current coil when______________?

A. load impedance is high B. load impedance is low C. supply voltage is low D. none of the above...

To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken_______________?

A. from a source which is not the same as the unknown voltage B. from a battery C. from the same source as the unknown voltage D. any of the above...

In Weston synchronoscope the moving coil is connected across______________?

A. bus-bars B. incoming alternator C. fixed coils D. any of the above...