Question
Asked Nov 7, 2019

Ch 19, problem 16

The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -7.00 x 10-9 C placed at corner A and then at corner B.

A
1.50x10 c 42=+4.00 x 10-9c
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A 1.50x10 c 42=+4.00 x 10-9c

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Expert Answer

Step 1
Introcuction
N chaages
Consider a AyAtem Consist of
91,92, 23, 2N Each of thest chosge
able to produtes own electfc potentiae
at Aome point p în tkespace of System
So, the net electic potentfal Ve is the
um of thene ?ndividual electaic potentfae
VP
Vi
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Introcuction N chaages Consider a AyAtem Consist of 91,92, 23, 2N Each of thest chosge able to produtes own electfc potentiae at Aome point p în tkespace of System So, the net electic potentfal Ve is the um of thene ?ndividual electaic potentfae VP Vi

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Step 2
2
If the point Pis at distances
from N chages
Potential at point p due to N char ges
-K
Y Σ 2.
and the poten tial energy for bainging
a Charge a foom inffnfty to the
Point P.
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2 If the point Pis at distances from N chages Potential at point p due to N char ges -K Y Σ 2. and the poten tial energy for bainging a Charge a foom inffnfty to the Point P.

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Step 3
Gfven
Charge, 2,= t.50 x10
Chease, 22
+4.00x16C
Chorge, 2s
-7.00 x lDC
Side length of Aquare, L= 0-250 m
Coudomb Constant, k 9x i0 .m2
C2
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Gfven Charge, 2,= t.50 x10 Chease, 22 +4.00x16C Chorge, 2s -7.00 x lDC Side length of Aquare, L= 0-250 m Coudomb Constant, k 9x i0 .m2 C2

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Electrostatic Potential and Capacitance

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