In parallel resonance current is

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Examoogle · Accepted Answer

MInimum

Explanation: In a parallel resonance circuit, the current is minimum at resonance. This occurs because the impedance of the circuit is at its maximum due to the resonant condition. The minimum current is a characteristic feature of parallel resonance circuits. Working Principle: The working principle behind this phenomenon involves the combination of inductive and capacitive reactances in the circuit. At resonance, the inductive reactance equals the capacitive reactance, resulting in a net reactance of zero and maximum impedance, thus minimizing the current. Key Formulas: $I = \frac{V}{Z}$ — the current in a circuit is inversely proportional to the impedance; $Z = \sqrt{R^2 + (X_L - X_C)^2}$ — impedance in a parallel RLC circuit Key Points: Resonance occurs when the inductive reactance equals the capacitive reactance; At resonance, the impedance of the circuit is maximum in a parallel circuit Advantages: Improved selectivity; Reduced current Disadvantages: Higher impedance; Narrow bandwidth Applications: Filters; Tuning circuits Additional Info: Resonant Condition: $X_L = X_C$. Wrong Options Explained: Option B = Maximum current occurs in series resonance, not parallel; Option C = Both minimum and maximum are incorrect as minimum current is specific to parallel resonance Answer: A is correct — In a parallel resonance circuit, the current is minimum due to maximum impedance at resonance. Exam Tip: For competitive exams, remember that series resonance results in maximum current, while parallel resonance results in minimum current, which helps in quickly identifying the correct option.

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