Eta The Expert TAIHuman-lik... X c Physics question I chegg.c... x C chegg study

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Eta The Expert TAIHuman-lik... X c Physics question I chegg.c... x C chegg study l Guided solu... x C Home I chegg.com x https./ pertt c Q. Search Home I Stud cmcbri14@uncc.edu My Account Log O Class Management I Help Topical Test 2 Circuits Begin Date: 3/18/2016 12:00:00 AM Due Date: 3/18/2016 11:59:00 PM End Date: 3/18/2016 59:00 PM 25 Problem 2: A copper wire of resistance R 28 2 is connected to a source of voltage that increases with time as where Vo 170 V and a 0.45 Assignment Status Click here for A 50% Part (a) Enter an expression for the power dissipated in the wire in terms of Vo, a, R, and t. detailed view Grade Summary Deductions potential 100% Problem Status 7 8 9 Submissions Attempts remaining: 2 4 5 6 4% per attempt) 1 2 3 detailed view Hint Feedback I give up! Submit Feedback: Hints: 50% Part (b) Calculate the energy dissipated by the resistor in joules during the first 1.1 s. A All content e 2016Expert TA, LLC

Explanation / Answer

part a )

P = V^2/R

V = Vo(1- e^-alpha*t)

P = [Vo(1- e^-alpha*t)]^2/R

part b )

E = P*t

E = 173.068 J

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