The power of a n-phase circuit can be measured by using a minimum of_______________?

Related Mcqs:

Which of the following essential features is possessed by an indicating instrument?

A. Deflecting device B. Controlling device C. Damping device D. All of the above...

A moving-coil permanent-magnet instrument can be used as flux-meter_____________?

A. by using a low resistance shunt B. by using a high series resistance C. by eliminating the control springs D. by making control springs of large moment of inertia...

A direct current can be measured by________________?

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

In a low power factor wattmeter the compensating coil is connected_______________?

A. in series with current coil B. in parallel with current coil C. in series with pressure coil D. in parallel with pressure coil...

In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at_____________?

A. 0° B. 60° C. 90° D. 120°...