Question

What is Electric Field due to Charged Conducting Sphere?

Answer

Electric Field due to Charged Conducting Sphere - If a charge on a conducting sphere of radius R is Q and σ is surface charge density as shown in the figure below, then electric field in different situations are (i) Outside the sphere - If point p lies outside the sphere, E_out = 1/4πε₀×Q/r² = σR²/ε,sub>0 r² [∵ Q = σ × A] (ii) At the surface of sphere - At surface, r = R So, E_s = 1/4πε₀ × Q/R² = σ/ε₀ (iii) Inside the sphere - Inside the conducting change sphere, electric field is zero. E_in = 0