Physics, Electricity, Magnetism, Science, Math.
curved surface the angle between E and dA is 9⁰⁰. So, cos 9⁰⁰ = 0. So, φ3 = ∮E*dA*cos 9⁰⁰ or, φ3 = ∮E*dA* 0 or φ3 = 0 So, the net flux, φ = φ1 + φ2 + φ3 or, φ = E*A + E*A + 0 or, φ = 2*E*A ……………(1) According to Gauss’s Law , φ = Σ q /ε₀ Here, Σ q = total charge on the plane inside the cylinder. So,