Problem 15: A V = 98-V source is connected in series with an R = 1.6-kΩ resistor and an L = 26-H inductor and the current is allowed to reach maximum. At time t = 0 a switch is thrown that disconnects the voltage source, but leaves the resistor and the inductor connected in their own circuit.
Randomized Variables
V = 98 V
R = 1.6 kΩ
L = 26 H
50% Part (a) How much time, in milliseconds, is needed for the current in the circuit to drop to 9 % of its value at t = 0?
50% Part (b) How much energy, in millijoules, does the circuit dissipate during that time?
U_dissipated =