The power factor of a single phase load can be calculated if the instruments available are
A) one voltmeter and one ammeter
B) one voltmeter, one ammetqr and one wattmeter
C) one voltmeter, one ammeter and one energy meter
D) any of the above
Correct Answer:
Verified
Q6: A dynamometer wattmeter can be used for
A)both
Q7: The pressure coil of a wattmeter should
Q8: In a low power factor wattmeter the
Q9: In a low power factor wattmeter the
Q10: In a dynamometer 3-phase power factor meter,
Q12: The power of a n-phase circuit can
Q13: A Dynamometer type wattmeter responds to the:
A)average
Q14: The power measurement in a balanced 3-phase
Q15: The braking torque provided by a permanent
Q16: Which of the following is integrating instruments?
A)power
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