# Define the Quality Factor in an A.C. Circuit. Why Should the Quality Factor Have High Value in Receiving Circuits? Name the Factors on Which It Depends. - Physics

#### Question

Define the quality factor in an a.c. circuit. Why should the quality factor have high value in receiving circuits? Name the factors on which it depends.

#### Solution

The ratio(omega_0L)/Ris called the quality factor or Q-factor.

Q = (omega_0L)/R

The quality factor has high value in receiving circuits in order to get a sharp gain for the desired channel frequency.

The quality factor depends on the values of the following:

1. Inductance

2. Resistance

3. Capacitance

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