In Weston synchronoscope the moving coil is connected across______________?

Related Mcqs:

1. In a Weston synchronoscope, the fixed coils are connected across_______________?

   A. bus-bars B. incoming alternator C. a lamp D. none of the above...

2. A Weston synchronoscope is a________________?

   A. moving coil instrument B. moving iron instrument C. dynamometer instrument D. none of the above...

3. 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...

4. 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...

5. 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...

6. 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...

7. In a Weston frequency meter, the magnetic axes of the two fixed coils are__________________?

   A. parallel B. perpendicular C. inclined at 60° D. inclined at 120°...

8. A Weston frequency meter is_____________?

   A. moving coil instrument B. moving iron instrument C. dynamometer instrument D. none of the above...

9. E.m.f. of a Weston cell is accurately measured by________________?

   A. electrostatic voltmeter B. hot wire voltmeter C. isothermal voltmeter D. electrodynamic voltmeter...

10. 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...