A 60μF capacitor is charged to 100 volts. This charged capacitor is connected across a 15mH coil, So that LC oscillations occur. Maximum current in the coil is :

Question

A 60μF capacitor is charged to 100 volts. This charged capacitor is connected across a 15mH coil, So that LC oscillations occur. Maximum current in the coil is : (A) 5A (B) 2A (C) 15A (D) 2√10A

Tardigrade Admin · Accepted Answer

Q0=CV &i0=Q0ω =(CV/√LC) i0=V√(C/L)=2√10

Q. A $60 μ F$ capacitor is charged to $100$ volts. This charged capacitor is connected across a $15 m H$ coil, So that $L C$ oscillations occur. Maximum current in the coil is :

$5 A$

$2 A$

$15 A$

$210 A$

$Q_{0} = C V & i_{0} = Q_{0} ω = \frac{C V}{L C}$
$i_{0} = V \frac{C}{L} = 210$

Q. A 60μF capacitor is charged to 100 volts. This charged capacitor is connected across a 15mH coil, So that LC oscillations occur. Maximum current in the coil is :

5A

2A

15A

210​A