a edugen.wileyplus.com Assignment open Assignment Chapter 30, Problem 64 Chapter

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a edugen.wileyplus.com Assignment open Assignment Chapter 30, Problem 64 Chapter 30,Practice Problems L Your answer is partially correct. Try again. 0, a battery is connected to a series arrangement of a resistor and an inductor. At what multiple of the Att nductive time constant will the energy stored in the inductor's magnetic field be 0.516 its steady-state value? 2.6 Click if you would like to show work for this questioni Chloter Problem By accessing this Question Assistance, you will earn while you earn points based on the Point Potential Policy set by chaoterlo Problem your instructor. Question Attempts Unlimited SAveroRATER SUSMITANswER objective D 2000 2017 by John Wiley & Sors Inc. or related companies. All rights reserved

Explanation / Answer

U = 1/2 * L*i(t)^2

U(t) = 0.516 * U = 0.516*1/2 * L*if^2

i(t) = 0.718 * if

but current i(t) = if * (1-e^-t/T)

1-e^-t/T = 0.718

t/T - -ln(1-0.718)

t/T = 1.27

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