Learning Goal:

To practice Problem$-$Solving Strategy $30\mathrm{.}1$: Inductors in Circuits.

A circuit has a $4\mathrm{.}8$ V battery connected in series with a switch. When the switch is closed, the battery powers two paths in parallel, one of which has a resistor of resistance $R_1=100$ in series with an inductor of inductance $L=1\mathrm{.}4{10}^{-2}H,$ while the other has a resistor of resistance $R_2=380.$ What is the current supplied by the battery at a time $t=0\mathrm{.}4ms$ after the switch is closed?

What is the current $i_1$ supplied by the battery a time $t=0\mathrm{.}4ms$ after the switch is closed?

Express your answer in amperes to three significant figures.

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Previous Answers

Correct

EVALUATE your answer

Part D

In the previous part, you found the current supplied by the battery $0\mathrm{.}4$ ms after the switch is closed. What will be the steady$-$state current, $I_1,$ supplied by the battery after the switch has been closed for a very long time?

Express your answer in amperes to three significant figures.

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