Electro Magnetic Induction And Alternating Currents Question 70
Question: In a LCR circuit capacitance is changed from C to 2C. For the resonant frequency to remain unchanged, the inductance should be change from L to [AIEEE 2004]
Options:
A) 4L
B) 2L
C) L/2
D) L/4
Show Answer
Answer:
Correct Answer: C
Solution:
$ {\nu_{0}}=\frac{1}{2\pi \sqrt{LC}} $ If C changes to 2C then for keeping n0 constant L must change to L/2.
