Question

14. A flat, square surface with sides of length L is
described by the equations :
x = L, 0 <= y<=L, 0<=z<= L
The electric flux through the square due to a
positive point charge q located at the origin
(x = 0, y = 0, z = 0) is :
(a) q/4€
(b) q/6€
(c) q/24€
(d) q/48€

Answer 1

Answer:

q/4€

Explanation:

since the square has four sides , and the charge is located in the exact centre of the square, using phi= q/€°

Answer 2

Answer:

The square will have six faces since the dimension of the square is from x,y and z axis with the length of each side as L cm.

Since, the positive charge q is located in the center hence the flux from one of the face will be q/4ε thus for the six faces the electric flux linked through the surface will be q/24ε since the flux linked through a plate will be q/2ε.