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.

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

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.
 The restoring torque is provided by a controlling torque.
 It consist of two coils mounted at right angles to each other.

ANSWER DOWNLOAD EXAMIANS APP