Multiple Choice
The braking torque provided by a permanent magnet in a single phase energy meter is proportional to the
A) square of the flux of the permanent magnet
B) speed of the meter
C) distance of the permanent magnet from the centre of the revolving disc
D) all of the above.
Correct Answer:

Verified
Correct Answer:
Verified
Q15: The power of a n-phase circuit can
Q16: The power measurement in a balanced 3-phase
Q17: The pressure coil of a wattmeter should
Q18: In an Induction type energy meter, maximum
Q19: In a low power factor wattmeter the
Q20: In an induction type energy meter, compensation
Q21: A Dynamometer type wattmeter responds to the:<br>A)average
Q23: The phenomenon of creeping occurs in<br>A)voltmeter<br>B)ammeter<br>C)wattmeter<br>D)watt-hour meter
Q24: An Induction meter meter can handle current
Q25: The power factor of a single phase