Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?

Related Mcqs:

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...

It is required to measure the true open circuit e.m.f. of a battery. The best device is_____________?

A. D.C. voltmeter B. Ammeter and a known resistance C. D.C. potentiometer D. None of the above...

A voltage of about 200 V can be measured__________________?

A. directly by a D.C. potentiometer B. a D.C. potentiometer in conjunction with a volt ratio box C. a D.C. potentiometer in conjunction with a known resistance D. none of the above...

For measurements on high voltage capacitors, the suitable bridge is_______________?

A. Wein bridge B. Modified De Santy’s bridge C. Schering bridge D. Any of the above E. None of the above...

Which of the following is measured by using a vector voltmeter ?

A. Amplifier gain and phase shift B. Filler transfer functions C. Complex insersion loss D. All of the above...