I got this assignment due in less than an hour and can't for the life of me get the last problem.
There is a circuit with a battery emf of 50 V, a resistance of 250 ohms, and inductor L, and then in parallel with that is a capacitor of .50 uF. There is also a switch. The switch is closed for a long time and no voltage is measured across the capacitor. The switch is opened and the voltages across the capacitor reaches a maximum of 150 V. What is the value of the inductor?
So the only equation I got for a RLC circuit is Q = Qmax*e^(-Rt/2L)*cos(omega * t)
So I'm assuming Qmax=CVmax, but still I don't know what I'd use for time t in that equation, or for omega, so I don't know how to solve for L! Any ideas? Please, I really need these points! :frown:
There is a circuit with a battery emf of 50 V, a resistance of 250 ohms, and inductor L, and then in parallel with that is a capacitor of .50 uF. There is also a switch. The switch is closed for a long time and no voltage is measured across the capacitor. The switch is opened and the voltages across the capacitor reaches a maximum of 150 V. What is the value of the inductor?
So the only equation I got for a RLC circuit is Q = Qmax*e^(-Rt/2L)*cos(omega * t)
So I'm assuming Qmax=CVmax, but still I don't know what I'd use for time t in that equation, or for omega, so I don't know how to solve for L! Any ideas? Please, I really need these points! :frown:
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