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ECE · Q1

Measurement And Instrumentation

Engineering and GATE · ECE · question 1

Q1

One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land?

A.
1
B.
0.84
Answer
C.
0.73
D.
0.65

Answer: Option B

Solution

Answer: Option B
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