Electro Magnetic Induction And Alternating Currents Question 194

Question: In a LCR circuit capacitance is changed from C to 1C. For the resonant frequency to remain unchanged, the inductance should be change from L to

Options:

A) 4L

B) 2L

C) L/2

D) L/4

Show Answer

Answer:

Correct Answer: C

Solution:

  • Resonance frequency, ω0=1LC=1L(2C)
    ,L=L2 .


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