Question

2- In free space, an infinitely large plane sheet of uniform surface charge density Ps =-50 which is placed on the y-z plane. The electric flux density vector at (-5,0,-5), 1, is: a) 25x10-9 b) 25*10-96 c) 25x10-9 (dx + a) d) -25x10-96 e) 25 år f) None of the above

Answer 1

Answer:- 2) Option a is the correct answer.

For an infinite plane sheet of charge, the electric field value is given by-

E 29

Keeping the value, we get-

50x10-9 25x10-9 E = - = 2€

The point is at the negative x-axis, the charge on the sheet is negative. So the electric field at the given point would be towards the sheet i.e. towards positive x-axis.

Thus,

E = 25x10-9 —ax εο