MHT CET 2024 Physics question
A series resonant circuit consists of inductor 'L' of negligible resistance and a capacitor 'C' which produces resonant frequency 'f'. If L is changed to 3 L and 'C' is changed to 6C, the resonant frequency will become
Answer: (4)
Solution
Resonant frequency of a series L-C circuit: , so . With and : , so \dfrac{1}{2π\sqrt{18LC}}$ =
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