Question
Assertion (A): In two wattmeter method of 3 phase power measurement, one of the wattmeters would read negative if power factor of load is less than 0.5.
Reason (R): In two wattmeter method of 3 phase power measurement, both the wattmeters would show equal readings if power factor of load is unity.
Reason (R): In two wattmeter method of 3 phase power measurement, both the wattmeters would show equal readings if power factor of load is unity.
Answer: Option B
Answer: (b).Both A and R are true but R is not correct explanation of A
Was this answer helpful ?
Answer: (b).Both A and R are true but R is not correct explanation of A
Was this answer helpful ?
More Questions on This Topic :
Question 3. In a current transformers....
Question 5. The accuracy of a multimeter is about....
Question 9. Harmonic distortion analyser....
Question 10. An electrostatic voltmeter is suitable for....
Latest Videos
Latest Test Papers
Submit Solution