Current Through an Oscillating LC Circuit

Thread starter evilempire
Start date Mar 18, 2005
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Circuit Current Lc Lc circuit Oscillating

AI Thread Summary

In an oscillating LC circuit with a 7.5 nF capacitor and a 4.4 mH inductor, the maximum voltage is 2.0 V. The maximum charge calculated is 1.5x10^-8 C. The relationship between maximum current and maximum voltage is established using the energy conservation principle, where the energy stored in the inductor equals the energy stored in the capacitor. The formula used is (1/2)L I_m^2 = (1/2)C U_m^2. This discussion highlights the importance of equating energies in oscillating circuits to find maximum current.

Mar 18, 2005

evilempire

An oscillating LC circuit consisting of a 7.5 nF capacitor and a 4.4 mH coil has a maximum voltage of 2.0 V. What is the maximum current through the circuit?

I got 1.5x10^-8 C for the max. charge.

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Mar 18, 2005

clive

\frac{1}{2}L I_m^2=\frac{1}{2}CU_m^2

Mar 18, 2005

evilempire

Got it. Forgot about the ability to set those equal to each other in oscillation.

Thanks!

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