In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of__________?
Correct answer: D. LorC
- A. R only
- B. L only
- C. C only
- D. LorC
- E. R,LorC
Explanation
The series resonance frequency is f_r = 1/(2π√LC), so it can be changed by changing either L or C. Resistance affects the sharpness and current, but not the ideal resonance frequency.
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