A large metallic plate is facing a charged sheet having charge density `sigma` placed parallel to plate at a distance `l` from the plate.Potential at point `P` at a distance `x` from the sheet is

Electric field due to an infinite non-conducting sheet of surface charge density sigma , at a distance r from it is

Two large parallel metal plates, each having area A , are oriented horizontally and separated by a distance 3d . A grounded conducting wire joins them, and initially each plate carries no chatege. Now a thirdidentical plate carrying charge Q is inserted between the two plates, parallel to them and lacated a distance (d) from the upper plate, as shown in. What induced charge appears on each of the two original plates? .

The plates of small size of a parallel plate capacitor are charged as shown. The force on the charged particle of 'q' at a distance 'l' from the capacitor is : (Assume that the distance between the plates is d ltlt l )

When a metal slab is placed between the charged identical , parallel plates , the potential difference between the plates

Two large metal plates with surface charge densities +sigma and -sigma are separated from each other by a distance of d. Find the force per unit area acting between them.

(i) If two similar large plates, each of area A having surface charge densities +sigma and -sigma are separated by a distance d in air,find the expression for (a) field at points between the two plates and on outer side of the plates. Specify the direction of the field in each case. (b) the potential difference between the plates. (c) the capacitance of the capacitor so formed. (ii) Two metallic spheres of radii R and 2R are charged so that both of these have same surface charge density sigma . If they are connected to each other with a conducting wire, in which direction will the charge flow and why ?

Two large parallel thin plates having uniform charge densities + sigma and - sigma are kept in X-Z plane at a distance d apart. Sketch an equipotential surface due to electric field between the plates. If a particle of mass m and charge -q remains stationary between the plates, what is the magnitude and direction of the filed ?