JEE Main202124 Feb 2021Evening ShiftPhysicsElectrostaticsActual
A point charge of + 12 μ C is at a distance 6 cm vertically above the centre of a square of side 12 cm as shown in figure. The magnitude of the electric flux through the square will be _______ × 10 3 N m 2 C - 1 .
Correct answer
0
Step-by-step solution
From symmetry ϕ = 1 6 q ε 0 = 12 × 10 - 6 6 × 8 . 85 × 10 - 12 = 225 . 98 × 10 3   N   m 2   C - 1 ≃ 226 × 10 3   N   m 2   C - 1