w Help 3 55% Tue 10:07 PM Q 0 edugen wileyplus.com ent FULL SCREEN PRINTER VERSI

Question

w Help 3 55% Tue 10:07 PM Q 0 edugen wileyplus.com ent FULL SCREEN PRINTER VERSION BACK Chapter 26, Problem o38 In Figure (a), a 30 n resistor is connected to a battery. Figure (b) shows the increase of thermal energy En in the resistor as a function of time t. The vertical scale is set by m, and the horizontal scale is set by s. What is the electric potential across the battery? Eths t 8.6 Click if you would like to show work for this question: open Show Privacy Policy 2000-2017. Wiley Sons, Inc. At Rights Reserved. A Devision or lenn Miher A nions Io6

Explanation / Answer

Power dissipated across the resistor is P = V^2/R

But according to the problem P = E/t = (3.95*10^-3)/8.6 = 4.59*10^-4 W

P = V^2/R

V = sqrt(P*R) = sqrt(4.59*10^-4*30) = 0.117 V

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