how that the electric potential at point P
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A thin rod extends along the x-axis from x = −a to x = a . The rod carries a positive charge +Q uniformly distributed along its length 2a with charge density λ, as shown in Figure attached.
a) Use dV = 1/4πε0 ∫ dq/r to show that the electric potential at point P is given by:
V(x) = (λ/4πε0) ln(x + a/x − a)
b) What is the electric potential of the rod at x = 4a and x = 2a?
c) What is the electric potential difference between x = 4a and x = 2a?
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