Why does a soap bubble expand when charged?

[Amith2006]

Why does a soap bubble expand when it is charged?

 

[Physics Monkey]

What are your thoughts?

 

[Amith2006]

I think it is due to thye repulsive forces acting between the charges.

 

[topsquark]

I think it is due to thye repulsive forces acting between the charges.

A hint: the soap bubble takes the shape and size of a surface of minimal energy for the system. Without the charge the soap bubble is a certain size. Why then, would adding charge change it?

-Dan