Electrical Engineering ⇒ Topic : Q-factor of a Coil
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Samual
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Q-factor of a Coil The ratio of the inductive reactance (XL) of a coil to its resistance (R) at a given frequency is known as Q-factor of the coil at that frequency i.e., The Q-factor is used to describe the quality or effectiveness of a coil. A coil is usually designed to have high value of L compared to its resistance R. The greater the value of Q-factor of a coil, the greater is its inductance (L) as compared to its resistance (R) . Many of the equations to be developed in a.c. circuit analysis can be simplified by the substitution of Q for the ratio XL/R. | |
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