Alternating current is measured by_______________?

A. Induction ammeter
B. Permanent magnet type ammeter
C. Electrostatic ammeter
D. Moving iron repulsion type voltmeter

Instrument transformers are_______________?

A. Potential transformers
B. Current transformers
C. Both a. and b.
D. Power transformers

Damping of the Ballistic galvanometer is made small to_______________?

A. Get first deflection large
B. Make the system oscillatory
C. Make the system critically damped
D. Get minimum overshoot

Standard resistor is made from_________________?

A. Platinum
B. Maganin
C. Silver
D. Nichrome

The desirable static characteristics of a measuring system are______________?

A. Accuracy and reproducibility
B. Accuracy, sensitivity and reproducibility
C. Drift and dead zone
D. Static error

A Weston frequency meter is_____________?

A. Moving coil instrument
B. Moving iron instrument
C. Dynamometer instrument
D. None of the above

In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of___________?

A. 0.1 hz
B. 0.25 hz
C. 0.5 hz
D. 1.5 hz

In a Schering bridge the potential of the detector above earth potential is______________?

A. A few volts only
B. 1 kv
C. 5 kv
D. 10 kv

If an inductance is connected in one arm of bridge and resistances in the remaining three arms____________?

A. The bridge can always be balanced
B. The bridge cannot be balanced
C. The bridge can be balanced if the resistances have some specific values

If the current in a capacitor leads the voltage by 80°, the loss angle of the capacitor is_________________?

A. 10°
B. 80°
C. 120°
D. 170°