The power factor in a circuit connected to an A.C. The value of power factor is
A. unity when the circuit contains an ideal inductance only
B. unity when the circuit contains an ideal resistance only
C. zero when the circuit contains an ideal resistance only
D. unity when the circuit contains an ideal capacitance only
Answer:B
The power factor in a circuit connected to an A.C. The value of power factor is
A. unity when the circuit contains an ideal inductance only B. unity when the circuit contains an ideal resistance only C. zero when the circuit contains an ideal resistance only D. unity when the circuit contains an ideal capacitance only