railway Gujarat Metro Maintainer 2023 Mock Test Electrician and Wireman Measuring Instruments

Power (P) in a 3 phase circuit with two watt meters at unity power factor is (W₁ & W₂) = watt meter readings)

1

P = W₁ + W₂

2

P = W₁ - W₂

3

P = W₂ × W₁

4

P = \(\sqrt {2{W_1}}\)

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