A body can be negatively charged by
Giving excess of electrons to it
Removing some electrons from it
Giving some protons to it
Removing some neutrons from it
When a glass rod is rubbed with a silk cloth, charges appear on both. A similar phenomenon is observed with many other pairs of bodies. Explain how this observation is consistent with the law of conservation of charge.
Discuss the phenomena experienced due to electrostatics.
How can the neutral body be charged electrically ?
How much positive and negative charge is there in a cup of water $(250\;gm)$?
Why charged particle attracts light particles ?