Users Also Read
MCQ's Search Engine
Electrical Engineering
Mechanical Engineering
Civil Engineering
Automobile Engineering
Chemical Engineering
Computer Engineering
Electronics Engineering
Medical Science Engg
Which of the following statement is correct for two wattmeters method of power measurement in 3 phase circuit? | |
A. | Power can be measured by this method only for star connected loads [Wrong Answer] |
B. | When two wattmeters have equal readings power factor is 0.5. [Wrong Answer] |
C. | When power factor is 1, one of the wattmeters readings is zero [Wrong Answer] |
D. | When the two wattmeter read equal and opposite, p.f. is zero. [Correct Answer] |