In a series RLC circuit, what happens to the current when the circuit is at reso
Practice Questions
Q1
In a series RLC circuit, what happens to the current when the circuit is at resonance? (2021)
It is maximum
It is minimum
It is zero
It is constant
Questions & Step-by-Step Solutions
In a series RLC circuit, what happens to the current when the circuit is at resonance? (2021)
Step 1: Understand what a series RLC circuit is. It consists of a resistor (R), an inductor (L), and a capacitor (C) connected in a single loop.
Step 2: Know what resonance means. Resonance occurs when the inductive reactance (XL) and capacitive reactance (XC) are equal.
Step 3: At resonance, the total impedance (Z) of the circuit is at its minimum value because the inductive and capacitive effects cancel each other out.
Step 4: Since impedance is low, it allows more current to flow through the circuit.
Step 5: Therefore, at resonance, the current in the circuit reaches its maximum value.
