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Unformatted text preview: . E i,x = k x r 2 sin , E i,y = k x r 2 cos 8. Express the distance From P to Q i in terms oF the x and ycoordinates, and substitute this in your equations For the electric feld components. r = r x 2 + y 2 E i,x = k x x 2 + y 2 sin , E i,y = k x x 2 + y 2 cos 9. Express sin and cos in terms oF the x and ycoordinates and substitute these in your equations For the electric feld components. sin = x r x 2 + y 2 , cos = y r x 2 + y 2 E i,x = kx x ( x 2 + y 2 ) 3 / 2 , E i,y = ky x ( x 2 + y 2 ) 3 / 2 10. Convert your equations into integrals: change your small distance element x or y into a dierential d x or d y ; determine the limits oF integration. E x = k i L/ 2L/ 2 x d x ( x 2 + y 2 ) 3 / 2 , E y = ky i L/ 2L/ 2 d x ( x 2 + y 2 ) 3 / 2 M. Ouellette, 22 April 2007 Page 2 oF 2...
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