Physics, asked by ashvinimahavar, 5 months ago

In a L – C – R circuit capacitance is changed from C to 2C. For the resonant frequency to remain

unchanged, the inductance should be changed from L to ......

(A) 4L (B) 2L (C)

L

2

(D)

L

4

Answers

Answered by ruchirsharma25

0

Explanation:

Correct option is

C

L/2

Resonant frequency, fr=2πLC1

As the frequency is unchanged so fr=fr′

LC=L′C′=L′(2C)

L′=2L

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