6496 iPad 5:30 PM edugen wileyplus.com 12DM Google Search Assignment Gradebook O

Question

6496 iPad 5:30 PM edugen wileyplus.com 12DM Google Search Assignment Gradebook ORION ment FULL SCREEN PRINTER VERSION BACK NEXT Chapter 19, Problem 43 The electric potential energy stored in the capacitor of a defibrillator is 74 Jr and the capacitance is 92 HF. What is the potential difference across the capacitor plates? Number Units Click if you would like to Show Work for this question Open Show Work LINK TO TEXT By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor, Question Attempts: o of 4 used SAVE FOR LATER SUBMIT ANSWER Earn Maximum Points available only if you answer this question in four ttempts or less Copyright 2000-2017 by John Wiley & Sons, Inc. or related companies. All rights reserved olicy I 2000:2017 John Wiley Sons Inc. All Rights Reserved. A Division of lohn Wiley &Sons; Jnc. Version 4.22

Explanation / Answer

given

U = 74 J

C = 92 micro F

V = ?

we know,

Potentail energy stored in a capacitor, U = (1/2)*C*V^2

V^2 = 2*U/C

V = sqrt(2*U/C)

= sqrt(2*74/(92*10^-6))

= 1268 volts

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