The pressure coil of a wattmeter should be connected on the supply side of the current coil when
A. load impedance is high
B. load impedance is low
C. supply voltage is low
D. none of the above
Answer:A
The pressure coil of a wattmeter should be connected on the supply side of the current coil when
A. load impedance is high B. load impedance is low C. supply voltage is low D. none of the above