Consider the following statements with reference to parallel resonance:
a) When f < fr, inductive susceptance predominates. The current lags behind voltage and the power factor is lagging in nature.
b) When f = fr, net susceptance is zero. The admittance is minimum, and impedance is maximum. At fr the current is in phase with the voltage and power factor is unity.
c) When f = fr, capacitive susceptance predominates. The current lags the voltage and power factor is lagging in nature.
d) When f > fr, capacitive susceptance predominates. The current leads the voltage and power is leading in nature.
Of these Statements:
1
a and c are correct
2
b and d are correct
3
a, b and d are correct
4
b, c and d are correct