Question:

In series LCR circuit, the capacitance is changed from C to 4C. To keep the resonance frequency unchanged, the new inductance should be :

(1) reduced by 1/4L

(2) increased by 2L 

(3) reduced by 3/4 L 

(4) increased to 4L                                                                             JEE-2024         

Solution:                
In series LCR circuit, the capacitance is changed from C to 4C. To keep the resonance frequency unchanged, the new inductance should be : (1) reduced by 1/4L (2) increased by 2L (3) reduced by 3/4 L (4) increased to 4L JEE-2024

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