The Q of an LC circuit is given by _________________?
Correct answer: C. 2pfrL / R
- A. 2pfr x R
- B. R / 2pfrL
- C. 2pfrL / R
- D. R2/2pfrL
Explanation
The quality factor of a series tuned circuit is Q = ωL/R = 2πfL/R, where reactance is compared with resistance. Thus the expression containing 2πfL divided by R is correct.
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