Post Utme Uniben 2025 Physics Question 6

Practice objective / multiple choice question 6 from the 2025 Post Utme Uniben Physics examination.

Post Utme Uniben 2025 Physics Objective / Multiple Choice
Question 6 POST_UTME_UNIBEN • 2025 • PHYSICS • objective

A solid sphere of radius $R$ and mass $M$ is placed at the origin of a coordinate system. A point charge $q$ is placed at a dis\tance $r$ from the center of the sphere. U\sing the concept of electric potential, derive an expression for the electric potential at the point charge $q$ due to the sphere.

Answer Options

Correct Answer A. V = \frac{q}{4\pi\epsilon_0 r^2} \left\( 1 - \frac{R^3}{r^3}\right \)
B. V = \frac{q}{4\pi\epsilon_0 r^2} \left\( 1 + \frac{R^3}{r^3}\right \)
C. V = \frac{q}{4\pi\epsilon_0 r^2} \left\( 1 - \frac{R}{r}\right \)
D. V = \frac{q}{4\pi\epsilon_0 r^2} \left\( 1 + \frac{R}{r}\right \)
Correct Answer
A
Correct Option:
V = \frac{q}{4\pi\epsilon_0 r^2} \left\( 1 - \frac{R^3}{r^3}\right \)

About This Question

This is Post Utme Uniben 2025 Physics Question 6. It is one of the objective questions from the 2025 Post Utme Uniben Physics examination.

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