# Two similarly charged pith balls are suspended from a point.The balls repel on each.If a mica sheet is introduced between them what will be the effect on the position of the balls

1
by sukirtha

Log in to add a comment

by sukirtha

Log in to add a comment

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

The pith balls repel each other because of the electrical repulsive force between the two charged balls. Let the distance between them be D units. Let a mica sheet be introduced in the center of these. let the charge be equal to q units.

Force = K q² / D² This is balanced by the tension in the string and gravity.

The mica sheet also develops equal charge (opposite charge) on each side of the sheet on its surface. Thus these equal charges are separated now only by D/2 distance. The force So the pith ball is repelled so that the distance between the mica sheet and each pith ball will be D units.

*Hence, the distance between them doubles.*

Force = K q² / D² This is balanced by the tension in the string and gravity.

The mica sheet also develops equal charge (opposite charge) on each side of the sheet on its surface. Thus these equal charges are separated now only by D/2 distance. The force So the pith ball is repelled so that the distance between the mica sheet and each pith ball will be D units.