A charge of +Q is fixed in space. A second charge of +q was first placed at a di

Question

A charge of +Q is fixed in space. A second charge of +q was first placed at a distance r1 away from +Q. Then it was moved along a straight line to a new position at a distance R away from its starting position. The final location of +q is at a distance r2 from +Q

What is the change in the potential energy of charge +q during this process?

Qq/R

kQqR/r12

kQqR/r22

kQq((1/r2)-(1/r1))

kQq((1/r1)-(1/r2))

ELON-CAPA at UGN checkpoint. Electric Pot × e Chegg Study | Guided Solut + h1lps://www.llipitphysics uurno ourse/ViewPrut lem?uriu lemID-]349 205533 UGA Hiptt Physics LON-CAPAatUGA 1 physics 1212 Ste·MAI H 2260 site weowork e chegg.com f torm tor MGA hope t MGA Thirslay, February 15 5:08P FlipltPhysics macmillan learning P1252Sp18YAbate: Optics, Electricity and Magnetism Untversity of Googla Checkpoint: Electric Potential Energy Print Aedgrmet View Electrie Potential Energy of Paint Charge Electric Patential Enerey af Point Charge A charge nr-q ls read inspara. A wcant charge nr-q was first placed at distance r1 fmm-Q. Then It was moved llonga traight line to ngw position st a distance R war from its starinR position. The final ocation of is at a cistncer from-Q Potential Energy of a System of Potint Electric Potential Energy of a System of Paint Charges, II n of Point Charge in Electrio Lecture Thoughts what the change In the patential enargy o changcurin this procoss? O Type here to search :16 PM 2/15/2018

Explanation / Answer

kQq((1/r2)-(1/r1))

change in potential energy = P.E.f - P.E.i
= kQq/r2 - kQq/r1  
=kQq((1/r2)-(1/r1))

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