A soap bubble is given a negative charge, then its radius

A soap bubble is given a negative charge. Its radius .......

a soap bubble is given positive charge, then its radius.

An isolated soap bubble is kept in a container in which the pressure is maintained at P_(0) . The bubble is given some charge due to which its radius increases to R_(0) . If the surface tension of the soap bubble is T, then the charge given to the bubble is

An isolated soap bubble is kept in a container in which the pressure is maintained at P_(0) . The bubble is given some charge due to which its radius increases to R_(0) . If the surface tension of the soap bubble is T, then the charge given to the bubble is

When a conducting soap bubble is negatively charged then