This problem required us to calculate the electric field at points (0, D) and at (L/2, D).
Electric field is expressed as:
, where k is Coulomb's constant, q is the charge, and r is the distance from the point to the charge.
, where λ is the line charge density and L is the length.
Taking an element of the charge, dq:
We now have, dE = dEcosθ(-i) + dE sinθ (j) ........................(1)
Substituting this to equation (1):
A total charge Q is distributed uniformly over rod length L. The rod is aligned on the x-axis, with one end at the origin and the other at point x = L.
a) calculate electric field at a point (0,D)
b) calculate the electric field at point (L/2,D)
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