Measurement and Instrumentation
In a ballistic galvanometer, the deflecting torque is proportional to

Square-root of current through coil
The current through coil
Sine of measured
Square of current through coil

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
Which of following statement are correct in case of power factor meter?

 The deflection is proportional to phase angle between field coil and crossed coil.
 Both B and C.
 It consist of two coils mounted at right angles to each other.
 The restoring torque is provided by a controlling torque.

ANSWER DOWNLOAD EXAMIANS APP