Electric Circuits. An elctric circuit contains a battery that produces a voltage of 60 volts, a resistor with a resistance of 13 ohms, and an inductor with an inductance of 5 henrys, as shown in the figure. Using calculus, it can be shown that the current
I = I(t) (in amperes) t seconds after the switch is closed is I = 60/13(1 - e^-13t/5).
a.) Use this equation to express the time t as a function of the curren I.
b.) After how many seconds is the current 2A ?
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