Question Detail

PHY 102 Gauss's Law and Electrostatic Fields Objective Question

Question

What is the electric field just outside a charged conductor?
Options
A E = σ/(2ε₀)
B E = σ/ε₀
Correct Answer
C E = 0
D E = σ/(4πε₀)
Correct Answer

Option B is the correct answer.

Detailed Explanation

For a charged conductor, the field just outside is E = σ/ε₀, where σ is the local surface charge density. The field is perpendicular to the surface.

Hint

Conductor: field is σ/ε₀.

Question Info