Instrumentation

What is the purpose of the rheostat in ohmmeter?

The zero-adjust control in an analog type ohmmeter is used to

The scale of a hot-wire instrument is a/an ___________ function

Moving iron instruments have a scale function that is

To increase the measuring capability of a moving-iron ac ammeter, a ______ should be used

Which electrical instruments below is the most sensitive?

Basically, a PMMC instrument can be used only in

Controlling torque in PMMC

What damping method is used in induction type ammeters?

Induction type instruments are mostly used as

In indicating instruments, what will happen to the controlling torque if the deflection becomes greater?

The forces that are acting on the pointer of an indicating instrument as it rest on its final deflected position. (damping torque is 0)

What is the force acting on the pointer of an indicating instrument when it is in motion?

Material that is mostly used as a pointer in indicating instruments

A Kelvin electrostatic voltmeter uses what method of damping?

Shunts in meters should have a _______ temperature coefficient of resistance

In a moving coil ammeter, a ________ is connected in series with the coil to compensate for temperature variations

Where can we use the dynamometer?

What is that meter that depends for its operation on the forces attraction and repulsion between electrically charged bodies?

What do you call of an instrument that depends for its operation on the reaction between magnetic flux set up by currents in fixed windings and other currents set up by electromagnetic induction in movable conducting parts?