The sharpness of resonance is mean sured by Co-factor of the circuit :-Obtain an expression for Q-factor

The quality factor Q determines the sharpness of resonance of an ac circuit. Obtain a relation that shows the dependence of Q on Resistance (R).

What is Q- factor of an LCR circuit?

Power factor is defined as the ratio of true power to apparent power:- Give an expression for power factor.

A hydrogen ion of mass 'm' charge 'q' travel with a speed 'v' along a circle of radius 'r' in uniform magnetic field of flux density 'B". Obtain an expression for the magnetic force on the ion and determine its time period?

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.

The current through an AC circuit depends on the magnitude of the applied voltage and impedance of the circuit: Draw an impedance diagram of a series LCR circuit and write the expression for the power factor from the diagram.

What are the factors on which the current depends at resonance?