Physics, Electricity, Magnetism, Science, Math.
Σ q = λ*A So, φ = (λ*A) /ε₀ ……………..(2) From equation (1) and (2) , (λ*A) /ε₀ = 2*E*A or, λ /ε₀ = 2*E or, E = λ /2ε₀ So, for a infinite plane with charge density λ , the electric field , Notice that, r is not present in the equation . So, E does not change over distance from the plate. Electric