Discuss parellel resonance circuit. Where is it used?

What is resonance?

Discuss about stress-strain curve .

The amplitude of current in series LCR circuit connected to an AC frequency "omega" is given by i_m = v_m/(sqrt(R^2+(X_L-X_C)^2) Where X_L and X_C are inductive and capacitative reactances respectively and "v_m" is amplitude of voltage. Starting fron this equation show that sharpness of resonance in the circuit is equal to the quality factor of the circuit.

Discuss the role of emulsifier.

State Ampere's circuital law.