A. deflecting
B. controlling
C. damping
D. any of the above
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Related Mcqs:
- A moving-coil permanent-magnet instrument can be used as ____________by using a low resistance shunt?
- A. ammeter B. voltmeter C. flux-meter D. ballistic galvanometer...
- 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...
- The resistance in the circuit of the moving coil of a dynamometer wattmeter should be_____________?
- A. almost zero B. low C. high D. none of the above...
- 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°...
- In Weston synchronoscope the moving coil is connected across______________?
- A. bus-bars B. incoming alternator C. fixed coils D. any of the above...
- The spring material used in a spring control device should have the following property?
- A. Should be non-magnetic B. Most be of low temperature co-efficient C. Should have low specific resistance D. Should not be subjected to fatigue E. All 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...
- Basically a potentiometer is a device for________________?
- A. comparing two voltages B. measuring a current C. comparing two currents D. measuring a voltage E. none of the above...
- Wagner earthing device is used to eliminate errors due to________________?
- A. electrostatic coupling B. electromagnetic coupling C. both A. and B. D. none of the above...
- When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is____________?
- A. short-circuited B. all right C. faulty...
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