Three wattmeter method of power measurement can be used to measure power in :

(a) Balanced circuits
(b) Unbalanced circuits
(c) Both balanced and unbalanced circuits
(d) None of the above

Anurag Mishra Professor Asked on 1st February 2016 in Physics.
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    Answer: (b) unbalanced circuits 

    Anurag Mishra Professor Answered on 21st May 2016.
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