In a series RLC circuit, what happens to the current at resonance?

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Question: In a series RLC circuit, what happens to the current at resonance?

Options:

Correct Answer: Maximum

Solution:

At resonance, the current is maximum in a series RLC circuit.

In a series RLC circuit, what happens to the current at resonance?

In a series RLC circuit, what happens to the current at resonance?

Step 1: Understand what a series RLC circuit is. It consists of a resistor (R), inductor (L), and capacitor (C) connected in a single loop.
Step 2: Know what resonance means. Resonance occurs when the frequency of the source matches the natural frequency of the circuit.
Step 3: At resonance, the inductive reactance (XL) and capacitive reactance (XC) cancel each other out. This means they are equal in value.
Step 4: When XL and XC cancel each other, the total impedance of the circuit is minimized, which allows maximum current to flow.
Step 5: Therefore, at resonance, the current in the series RLC circuit reaches its maximum value.

Resonance in RLC Circuits – At resonance, the inductive and capacitive reactances cancel each other out, resulting in maximum current flow in the circuit.