When a glass rod is rubbed with silk, it
Gains electrons from silk
Gives electrons to silk
Gains protons from silk
Gives protons to silk
Write unit and value of fundamental electric charge.
How can you represent experimentally that $(i)$ there are two types of charges and $(ii)$ there is repulsion between two like charges and attraction between two unlike charges ?
What was found by Thales of Miletus ?
What is called electrostatics ?
One metallic sphere $A$ is given positive charge whereas another identical metallic sphere $B$ of exactly same mass as of $A$ is given equal amount of negative charge. Then