2%
5%
1%
3.33%

## Measurement and Instrumentation An induction wattmeter can be used for

Both DC and AC
Dc only
Any of the listed here
Ac only

## Measurement and Instrumentation Which amplifier in used in an electronic amplifier?

Power amplifier.
Wideband amplifier.
Differential amplifier.
Butter amplifer.

## Measurement and Instrumentation The moving coil-meters, damping is provided by

eddy current disk.
the coil spring attached to the moving.
the aluminium frame of the coil.
damping vane in the airtight chamber.

## Measurement and Instrumentation If an inductance L is connected in one arm of bridge and resistance R1, R2, R3 in other three arms

The bridge can not be balanced.
The bridge is balanced for some specified value of frequency.
The bridge can be balanced.
The bridge is balanced for some specified value of R1, R2, R3.

## Measurement and Instrumentation Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit.

1 is true but 2 is false.
Both 1 and 2 are true.
Both 1 and 2 are false.
1 is false but 2 is true.