Question

Derive the condition for series resonance in R-L-C series circuit.

Answer 1

Answer:

Resonant Current

So, in a series resonant circuit, voltage across resistor is equal to supply voltage i.e V = Vr. In series RLC circuit current, I = V / Z but at resonance current I = V / R, therefore the current at resonant frequency is maximum as at resonance in impedance of circuit is resistance only and is minimum