 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2021/ii/paper-4/36c/c/solution

Codex  0 Created 2026-09-24 Updated 2026-10-03

[3 (p \cdot x) x - p] / (4 π ε_{0} r^{3})

. Comparison yields the induced electric dipole moment

p = 4 π ε_{0} a^{3} \frac{ε - ε _{0}}{ε + 2 ε _{0}} E_{0} .

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