Physics, asked by alex4550, 1 year ago

Sharpness of resonance in a series resonant circuit? Find expression for q-factor of circuit.

Answers

Answered by sushitlipun
11

The resistance is minimum in Parallel combination as compared to the Resistance connected in Parallel!

Answered by nitkumkumar
29

Sharpness of resonance in a series resonant circuit is defined by the  Q factor . This can be defined as how quickly the energy of the oscillating system decays.

Sharpness of  resonance  depend upon two factors -

Damping and Amplitude .

Thus, we can say that when damping increase the sharpness also increase and  when damping decrease sharpness of resonance also decrease.

Also, the sharpness increase when amplitude decreases .

Quality factor is defined as ratio of the flowing branch currents to the supply current .

Thus,  q-factor of circuit = R/(2pi * f * L)

where, R = resistance

            L = inductor

           f = frequency of resonance circuit = 1/2π√LC

            C = capacitance

=>   q-factor of circuit = R/(2π * f * L)

                                  =  2π *f * C * R

                                  =  R * √C/L

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