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For an RLC circuit, resonance occurs when the circuit is purely resistive, meaning the emf of the battery is all consumed by the resistor and the current \( I \) is maximum.

A) True
B) False

Answer :

Resonance in an RLC (resistor-inductor-capacitor) circuit occurs when the inductive and capacitive reactances cancel each other out, resulting in a purely resistive impedance. However, this does not imply that the circuit is purely resistive in terms of the components present. The correct answer is: B) False.

During resonance, the reactive components (inductor and capacitor) store and release energy, contributing to the overall behavior of the circuit.

While the impedance may become purely resistive at resonance, it does not mean that the circuit consists solely of a resistor. Instead, the resistor, inductor, and capacitor are all present and interact with each other in a specific way to achieve resonance.

In conclusion, resonance in an RLC circuit occurs when the reactive components cancel each other out, resulting in a purely resistive impedance.

However, this does not imply that the circuit is purely resistive in terms of its components. The presence of inductors and capacitors, along with resistors, is necessary for resonance to occur. Therefore, the statement that resonance occurs when the circuit is purely resistive is false.

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Rewritten by : Brahmana