`(i)` If two similar large plates, each of area A having surface charge densities `+sigma` and
Channel: Doubtnut
Date: 19/01/2020

`(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 ?