Question

A series combination of an inductor (L), capacitor (C) and a resistor (R) is connected across an ac source of emf of peak value E₀, and angular frequency (ω). Plot a graph to show variation of impedance of the circuit with angular frequency (ω).

Answer 1

The graph showing the variation of impedance (Z) of the circuit with angular frequency (ω) is shown below:

Here, ω₀ represents the resonance frequency for the LCR circuit, and R is the resistance of the circuit.