The correct answer is: B. Zero
At parallel resonance, the inductive reactance and capacitive reactance cancel each other out, resulting in a net reactive component circuit current of zero.
Inductive reactance is inversely proportional to frequency, while capacitive reactance is directly proportional to frequency. When the frequency is such that the inductive reactance and capacitive reactance are equal in magnitude, they cancel each other out, resulting in a net reactive component circuit current of zero.
This can be seen in the following equation:
$X_L = X_C$
where:
- $X_L$ is the inductive reactance
- $X_C$ is the capacitive reactance
At parallel resonance, the impedance of the circuit is purely resistive, and the current through the circuit is in phase with the voltage across the circuit.