Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
In an AC circuit the power factor (1) is unity when the circuit contains as ideal resistance only (2) is zero when the circuit contains an ideal inductance only (3) is zero when the circuit contains an ideal resistance only (4) is unity when the circuit contains an ideal inductance onlyA) 1, 2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: B
Solution :
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