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Secure l https://edugen.wileyplus.com/edugen/student/mainfruri WileyPLUS: lerpus i l ContactUs l leLDd Halliday, Fundamentals of Physics, 10e GENERAL PHYSICS (201/202/301) dy & Practice Gradebook ORION Downloadable eTextbook n Assignment FULL SCREEN BACK Chapter 24, Problem 088 Two charges -+1.7 uc are fixed a distance d-2.8 cm apart (see the figure). (a) with V-0 at infinity, what is the electric potential at point C? (b) You bring a third charge q- +1.7 uC from infinity to C. How much work must you do? (c) What is the potential energy U of the three-charge configuration when the third charge is in place? blenm blem blem blem biem obiem (a) Number (b) Number (c) Number Click if you would like to Show Work for this question: Units Units Units 9 en.show Work TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM LINK Oo By accessing this Question Assistance, you will learn while you earn points based on the Point Potential your instructor Policy set by Version 4.24.5.1

Explanation / Answer

a)

Electric potential at point C

VC=KQ/sqrt[(d/2)2+(d/2)2]+KQ/sqrt[(d/2)2+(d/2)2]

VC =2*(9*109)(1.7*10-6)/sqrt(0.0142+0.0142)

VC =1.5455*106Volts

b)

Work done

W=qV=(1.7*10-6)(1.5455*106)=2.6274 J

c)

Potential energy of three charge configuration

U=Kq2/d +Kq2/sqrt[(d/2)2+(d/2)2]+Kq2/sqrt[(d/2)2+(d/2)2]

U=(9*109)(1.7*10-6)2[1/0.028 +2/0.0198]

U=3.5563 J

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