Question 4 is on the last pages here
Question #1: Electric field due to a dipole (30 points total)
An electric dipole consists of a pair of point charges with equal
magnitude and opposite sign, +Q and –Q, and separated by a
distance 2a, as shown.
Part A (15 points): Show that at all points on the x-axis for
which |𝑥| ≫ 𝑎, 𝐸 ≈ 2𝜋𝜀 𝑥 3 .
Part B (15 points): Show that at all points on the y-axis for which |𝑦| ≫ 𝑎, 𝐸 ≈ 𝜋𝜀
Question #2: Electric Potential due to a dipole (30 points total)
Let’s consider the ...
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