Physics WebAssign Ch20 #15

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A battery is connected in series with a 0.31-Ω resistor and an inductor, as shown in the figure below. The switch is closed at t = 0. The time constant of the circuit is 0.10 s, and the maximum current in the circuit is 7.9 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.
_____V