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A 8.9-V battery is connected in series with a 38-mHinductor, a 190-Ω resistor, and an open...

A 8.9-V battery is connected in series with a 38-mHinductor, a 190-Ω resistor, and an open switch.

1.What is the current in the circuit 0.100 ms after the switch is closed?

Express your answer using two significant figures.

2. How much energy is stored in the inductor at this time?

Express your answer using two significant figures.

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Answer #1

Concept - find the time constant first and use the equation for current in a circuit containing a resistor and an inductor with a DC source as shown below

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