NEET Physics Electric Potential MCQ Question
Consider a diagram showing a spherical shell with a total charge q distributed uniformly over its surface. Which of the following expressions correctly represents the electric potential at a point outside the shell, at a distance r from the center of the shell?
V = (1 / (4 * π * ε₀)) * (q / r) for r ≥ R
V = (1 / (4 * π * ε₀)) * (q / R) for r > R
V = (1 / (4 * π * ε₀)) * (q / r) for r < R
V = 0 for r ≥ R
Correct Answer
Detailed Explanation
The potential outside a uniformly charged spherical shell is the same as if the entire charge were concentrated at the center, given by V = (1 / (4 * π * ε₀)) * (q / r) for r ≥ R.
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