Alternating current is measured by_______________?

Related Mcqs:

1. 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...

2. 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...

3. Resistances can be measured with the help of_______________?

   A. wattmeters B. voltmeters C. ammeters D. ohmmeters and resistance bridges E. all of the above...

4. 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...

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

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

6. 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...

7. 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...

8. An induction meter can handle current up to_____________?

   A. 10 A B. 30 A C. 60 A D. 100 A...

9. The chemical effect of current is used in ______________?

   A. D.C. ammeter hour meter B. D.C. ammeter C. D.C. energy meter D. none of the above...

10. The gravity controlled instrument has crowded scale because current is proportional to________________?

    A. balancing weight B. deflection angle C. sine of deflection angle...