Problem 56
A charged capacitor with \(C = 590 \, \mu \mathrm{F}\) is connected in series to an inductor that has \(L = 0.330\) H and negligible resistance. At an instant when the current in the inductor is \(i = 2.50\) A, the current is increasing at a rate of \(di/dt = 73.0\) A/s. During the current oscillations, what is the maximum voltage across the capacitor?
Problem 74
If part of the magnet develops resistance and liquid helium boils away, rendering more and more of the magnet nonsuperconducting, how will this quench affect the time for the current to drop to half of its initial value? (a) The time will be shorter because the resistance will increase; (b) the time will be longer because the resistance will increase; (c) the time will be the same; (d) not enough information is given.
