Question
Electric charge is distributed uniformly on the surface of a spherical rubber balloon. Show how the value of electric intensity and potential vary (i) on the surface, (ii) inside and (iii) outside?
Solution
Electric charge is uniformly distributed on the surface of a spherical balloon.
i) On the surface, electric intensity (E) and potential (V) will remain constant.
ii) Inside the surface, since there is no charge, electric field is qual to 0 and potential will remain constant.
iii) Outside the balloon,
where, r is distance of point from the centre of the balloon.
i) On the surface, electric intensity (E) and potential (V) will remain constant.
ii) Inside the surface, since there is no charge, electric field is qual to 0 and potential will remain constant.
iii) Outside the balloon,
where, r is distance of point from the centre of the balloon.
