MHT CET 2024 Physics question

PhysicsAlternating CurrentMHT CET 2024

In series LCR resonant circuit, the capacitance is changed from C to 3C. To obtain the same resonant frequency, the inductance should changed from L to

Answer: (A)

Solution

The resonant frequency of a series LCR circuit is . To keep the same, the product must remain constant: , so ,

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Question ID VK-093193