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please explain about sharpness of resonance and quantity factor this is related to alternating currents...............ques-i want to know about sharpness of resonance institute and quantity factor

Resonance is alternating current circuits, is the situation when impudence of the circuit is minimum and current magnitude is highest for a particular frequency.

For resonance is a circuit, you must have one inductor and one capacitor. There may or may not be resistance.

Quality factor (Q factor):



It is the ratio of the energy stored in the oscillating resonator to the energy dissipated per cycle by damping processes