Given below are two statements.
Statement I: Electric potential is constant within and at the surface of each conductor.
Statement II : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.
In the light of the above statements, choose the most appropriate answer from the options give below.
Statement I: Electric potential is constant within and at the surface of each conductor.
Statement II : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.
In the light of the above statements, choose the most appropriate answer from the options give below.
- (A)Both statement I and statement II are correct✓ Correct
- (B)Both statement I and statement II are incorrect
- (C)Statement I is correct but statement II is incorrect
- (D)Statement I is incorrect but and statement II is correct
Answer: (A)
Solution
Statement I is correct: In electrostatic equilibrium, the entire body of a conductor (including its surface) is an equipotential surface, meaning the electric potential is constant throughout. Statement II is also correct: Since the conductor is an equipotential surface, the tangential component of the electric field must be zero. Therefore, the electric field just outside the conductor must be perpendicular to the surface at every point. Both statements are fundamental properties of conductors in electrostatics.
JEE Main · 2022 · 29 Jul 2022 · Shift 1 · Single correct option