The total energy in an LC circuit is 5.0 *10^-6 J.If L = 25 mH the maximum current is: A)10 mA B)14 mA C)20 mA D)28 mA E)40 mA

Question

Quizplus · Accepted Answer

The formula for the energy stored in an LC circuit is
E = 1/2 * L * I^2
where E is the energy in joules, L is the inductance in henries, and I is the maximum current in amperes.
Rearranging this formula to solve for I, we get:
I = sqrt(2*E/L)
Substituting the given values, we get:
I = sqrt(2*5*10^-6 / 25*10^-3) = 20 mA
Therefore, the maximum current is 20 mA, which is closest to choice C (20 mA).

The Total Energy in an LC Circuit Is 5