Electro Magnetic Induction And Alternating Currents Question 22
Question: In LCR circuit, the capacitance is changed from C to 4C. For the same resonant frequency, the inductance should be changed from L to [MP PMT 1986; BHU 1998]
Options:
A) 2L
B) L / 2
C) L / 4
D) 4 L
Show Answer
Answer:
Correct Answer: C
Solution:
$ \omega =\frac{1}{\sqrt{L_{1}C_{1}}}=\frac{1}{\sqrt{L_{2}C_{2}}}\Rightarrow ,L_{2}=\frac{L_{1}}{4} $
