The switch in FIGURE P30.77 has been open for a long time. It is closed at t

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The switch in FIGURE P30.77 has been open for a long time. It is closed at t = 0 s.

imagea. After the switch has been closed for a long time, what is the current in the circuit? Call this current I0.b. Find an expression for the current I as a function of time. Write your expression in terms of I0, R, and L.c. Sketch a current-versus-time graph from t = 0 s until the current is no longer changing.

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