X.?i5Square One Four point charges form a squar...

x.?i5Square One

Four point charges form a square with sides of length , as shown in the figure. In the questions that follow, use the constant in place of .

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Part A
What is the electric potential at the center of the square?

Make the usual assumption that the potential tends to zero far away from a charge.

Express your answer in terms of , , and appropriate constants.
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Part B
What is the contribution to the electric potential energy of the system, due to interactions involving the charge ?
Express your answer in terms of , , and appropriate constants.
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Part C
What is the total electric potential energy of this system of charges?Express your answer in terms of , , and appropriate constants.
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, plz i want just the final answers , thanks
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Comments

    Answers ( 10 )

    1. herbert hall
      herbert hall


      Part A:



      Part B:




    2. neea erkkila
      neea erkkila
      thaanks

      part E ,
      =
      Correct

      , what about part D ??
      ----------------------------------------------
      What would be the kinetic energy of charge at a very large distance from the other charges?
      Express your answer in terms of,,and appropriate constants.
      =
      -----------------------------------------------
    3. ???? ???????
      ???? ???????
      sorry for the typing mistake.......PART A :7.0706* kq/d is the answer
      I updated the solution but you did not see the earliersbmission

      Part E: when 2q is far away it is neglected and theremaining three charges are considered
      in terms of only q and d
    4. juho nevala
      juho nevala
      you are right , and thanks , but , what about the part (A) ,part (c)
      plz i need it
    5. luise ullrich
      luise ullrich
      I corrected the calculation as
      please see


      I corrected the calculation of total potential energyinvolving 2q as below and updated it ;
      This is
      please check up now
    6. mar ortiz
      mar ortiz
      partA: dist of each charge from centre is

      So I am correcting the step below

      *2
      *2= 7.0706kq/d
      partB: potential energy involving 2q
      partC potential energy of system





    7. esther byrd
      esther byrd
      i lost most of my points :(:(:( all parts are wrong:``(
      part (A)
      Submitted Answers
      Submitted
      Evaluated
      1.44                 wrong

      part (c)
      Submitted Answers
      Submitted Evaluated Message
      ?29.8 wrong
      ?1.03×10?8 The correct answer involves the variable which was not part of your answer. wrong
    8. lola duval
      lola duval
      part A , is wrong and i get in it :``((
      (( Allowedattempts exceeded; answer withheld by teacher))
      -----------------
      part B
      part C
      is correct , and thanks
      -----------------
      i have more 2 part , may u can help me in it :
      PartD
      What would be the kinetic energy of charge at a very large distance from the other charges?
      Express your answer in terms of,,and appropriate constants.
      =
      javascript:submitFlash(fp%5B'problemView10'%5D)javascript:requestHintList(1606999,10,'problemView','')Part E
      What will be the potential energy of the system of charges when charge is at a very large distance from the other charges?
      Express your answer in terms of,,and appropriate constants.
      =
      javascript:submitFlash(fp%5B'problemView12'%5D)javascript:requestHintList(1606999,12,'problemView','')


    9. sonia mitchelle
      sonia mitchelle
      part A:
        
      part B:

      partC:

      Note I already corrected and updated my originally submittedsolution
    10. scarlett owens
      scarlett owens
      +q                               -3q
      +2q                              +5q
      the distance between charges to thecenter     d /
      the direction of the field are towards   -3q.
      V tot =q/k* [1/( d /) +1/( d /)+1/( d /)-1/ ( d /)]
          = q/k[/d]
      b) U = (-3q)(2q)/k*[1/d]
      c) Utot =(-3q)/k*[ (q/d) + (5q/d) +(2q/d)]

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