The current in a 21−mH inductor is given by the expressions i(t) = 0 t

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The current in a 21−mH inductor is given by the expressions i(t) = 0 t < 0 i(t) = 14(1 − e−t) mA t > 0 Find (a) the voltage across the inductor and (b) the expression for the energy stored in it. (a) V t < 0 v(t) = e−t μV t > 0 (b) J t < 0 w(t) = (1 − e−t)2 μJ t > 0

The current in a 21−mH inductor is given by the expressions i(t) = 0 t < 0 i(t) = 14(1 − e−t) mA t > 0 Find (a) the voltage across the inductor and (b) the expression for the energy stored in it. (a) V t < 0 v(t) = e−t μV t > 0 (b) J t < 0 w(t) = (1 − e−t)2 μJ t > 0

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The current in a

21 - mH

inductor is given by the expressions

\begin{array}{ll} i (t) = 0 & t < 0 \\ i (t) = 14 (1 - e^{- t}) mA & t > 0 \end{array}

Find (a) the voltage across the inductor and (b) the expression for the energy stored in it. (a)

◻

V

t < 0

v (t) =

◻

e^{- t} μ V

t > 0

(b)

◻

J

t < 0

w (t) =

◻

{(1 - e^{- t})}^{2} μ J t > 0

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