A battery is connected in series with a 0.31-? resistor and an inductor, as shown in the figure below. The switch is closed at t = 0. The time constant of the circuit is 0.20 s, and the maximum current in the circuit is 7.7 A.
(a) Find the emf of the battery.
V
(b) Find the inductance of the circuit.
mH
(c) Find the current in the circuit after one time constant has elapsed.
A
(d) Find the voltage across the resistor after one time constant has elapsed.
V
(e) Find the voltage across the inductor after one time constant has elapsed.