usw3 /oh. theexpertta.com/Common/TakeTutonialässignment aspx (1496) Problem 5: C
ID: 1884031 • Letter: U
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usw3 /oh. theexpertta.com/Common/TakeTutonialässignment aspx (1496) Problem 5: Charge q,--10.5 nC is located at the coordinate system origin, while charge q,- 3.56 nC is located at (a, 0), where a 0,75 m. The point P has coordinates (a, b), where b 0.55 m. A third charge qa 9.5 nC will be placed later y (a,b) di 42 Otheexpertta.com 50% Part (a) Find the electric potential VP at point p in volts. Assume the potential is zero at infinity. Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 10 (2% per attempt) detailed view cotanO asinO acoso atanO acotanosinhO coshO tanhO cotanh e Degrees Radians I give up Hints: 2% deduction per hint Hints remaining Feedback:--damon per feedback. 50 % Part b) How much work W. in oule would you have to do to bring the third charge, q3, from very far away to the point p?Explanation / Answer
A)
Electric potential at P
V= k(q1/r1+q2/r2)
=9*10^9*10^-9*( -10.5/sqrt(0.55^2+0.75^2) - 3.56/0.55)
= -159.86 V
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Energy needed
E= qV= 9.5*10^-9*(-159.86)
= - 1.52*10^-6 J
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Commemt in case any doubt.. goodluck
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