- #1
mintsnapple
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Homework Statement
Homework Equations
V = q/(4*pi*E_0*r), when 0 is taken at infinity
dV = -E*ds
The Attempt at a Solution
a. The total charge of the rod is given by Q = lambda*L
So the potential at P is given by
V = (lambda*L)/(4*pi*E_0*y)
b. We can calculate the electric field by differentiating part a with respect to y to get:
E = -(lambda*L)/(4*pi*E_0*y^2)*y-hat
c. Because point P is along the axis of the rod, there is no x-component to the electric field.