
#1
Aug3009, 03:13 PM

P: 457

1. The problem statement, all variables and given/known data
Positive charge q = 7.81 X 10^12 C is spread uniformly along a thing nonconducting rod of length L = 14.5 cm or .145 m. What are (a) magnitude and (b) direction (relative to the postive direction of the x axis) of the electric field produce at point P, at distance R = .06 m from the rod along its perpendicular bisector? 2. Relevant equations E = k * (q/(r^2)) dq = lamda * dx replace q with dq 3. The attempt at a solution 



#2
Aug3109, 11:41 AM

P: 288

Use symmetry and integration to solve. Try drawing the line charge along the y axis, pick a point on the line charge, dq, and express dE at a point P along the x axis created by dq.



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