Q: Consider metallic spheres of different radii r, all at the same electrostatic potential. Then the magnitude E of the electric field just outside these spheres depends on r as:
(a)E ∝ r⁻²
(b)E ∝ r⁻¹
(c)E ∝ r⁰
(d)E ∝ r
Correct Answer: (b)
The correct answer is (c): E ∝ r⁰. Subject: General Science | Sub-topic: Physics - Mechanics Note: This answer was determined through AI-based research. Verify against the official answer key when available.