Wiley PLUS PHYSICS I, II, III (Physics 150 252) Halliday, Fundamental s of Physi

Question

Wiley PLUS PHYSICS I, II, III (Physics 150 252) Halliday, Fundamental s of Physics, 9e Read, Study&Practice; Assignment open Assignment Chapter 24, Problem 89 24 electron in from infinity to complete an equilateral triangle? click if you would like to show work for this questioni Chapter 24 Problem 24 By accessing this Question Assistance, you wil learn while you earn points based on the Pont Potential Policy set by your instructor Question Attempts Unlimited SAVE ron LATER SAEMITANSRERI Copyright D 2000-2017 by John Wiley &Sors;, Inc or related companies. A rights reserved

Explanation / Answer

The potential at the point (vertex) of the equilateral triangle would be, the sum of the potentials due to two charges. So

V = 2 k q/r

V = 2 x 9 x 10^9 x 1.6 x 10^-19/(1.5 x 10^-6) = 0.00192 Volts

Work done required will be:

U = q V

U = 1.6 x 10^-19 x 0.00192 = 3.072 x 10^-22 J

Hence, Work done = U =  3.072 x 10^-22 J

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