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# A circuit is connected to a power soure that gives a voltage of 60 V. The circuit has an inductance pf 4 H and a resistance of 12 Ω...?

There is no current at time t=0.

(a) Find the equation for l(t)

(b) What is the limiting value of the current; i.e., what is l(t) as t-> infinity?

### 1 Answer

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- oldschoolLv 75 years agoBest Answer
I(t) = V/R * (1-e^-Rt/L) = 60/12 * (1 - e^-3t) = 5 as t-> infinity

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