Relation E and VHardQuestion 31459
Question
Near a conductor surface, which quantity changes abruptly (has a discontinuity)?
- APotential V
- BNormal component of E (proportional to σ)Correct
- CTangential component of E
- DBoth E and V
Correct answer
Normal component of E (proportional to σ)
Explanation
E_normal = σ/ε₀ just outside, 0 inside — discontinuous jump. V is continuous across the surface. Tangential E is continuous (no work done along surface).