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.
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true R is false
D. A is false R is true
Show Answer
Answer: B
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