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Consider an L-R circuit as shown in the figure. The battery provides 12.0 V of voltage. The inductor has inductance L, and the resistor has resistance R = 150 Ω. The switch is initially open as shown. At time t=0, the switch is closed. At time t after t=0 the current I(t) flows through the circuit as indicated in the figure.

What is the current I (t„) at a time after t=0 equal to three times the time constant?

6_An L-R circuit as shown in the figure.jpg

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