Find an expression for impedance of L.C.R. se ries circuit using phasor diagram.

A series LCR AC circuit has great practical importance. It is used for tuning radio, TV, wireless sets etc. : Obtain an expression for current in a series LCR ac circuit using phasor diagram.

What is impedance of L.C.R. series circuit at resonance?

With the help of neat circuit diagram obtain an expression for voltage gain of a transistor amplifier in C-E configuration.

Obtain an expression for the frequency at which resonance occurs in a series LCR circuit

Find the expression for the shunt resistance in a circuit where galvanometer is converted into ammeter