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

Related Mcqs:

1. 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°...

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

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

3. A Weston synchronoscope is a________________?

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

4. A Weston frequency meter is_____________?

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

5. In Weston synchronoscope the moving coil is connected across______________?

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

6. 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...

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

   A. Absolute instruments B. Indicating instruments C. Recording instruments D. Integrating instruments...

8. The electrical power to a meggar is provided by________________?

   A. battery B. permanent magnet D.C. generator C. AC. generator D. any of the above...

9. In an Anderson bridge, the unknown inductance is measured in terms of_______________?

   A. known inductance and resistance B. known capacitance and resistance C. known resistance D. known inductance...

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

    A. (n – 1) wattmeter elements B. n wattmeter elements C. (n + 1) wattmeter elements D. 2n wattmeter elements...