Q 12-07-086JEE MainJEE Main 2023 (8 Apr, Shift 1)Easy
An oscillating LC circuit consists of a $75$ mH inductor and a $1.2\ \mu\text{F}$ capacitor. If the maximum charge to the capacitor is $2.7\ \mu\text{C}$, the maximum current in the circuit will be ______ mA.
Numerical value type. Enter your answer.
Answer: 9
$I_0=\dfrac{Q_0}{\sqrt{LC}}=\dfrac{2.7\times10^{-6}}{\sqrt{75\times10^{-3}\times1.2\times10^{-6}}}=\dfrac{2.7\times10^{-6}}{3\times10^{-4}}=9\times10^{-3}$ A $=9$ mA.
Solution by Sreeraj P, M.Sc Physics