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
How can you charge a metal sphere positively without touching it?
How can the neutral body be charged electrically ?
Give difference between charge and mass.
What is earthing or grounding in household electrical circuit ?
Discuss the method of charging of two spheres by without contact method.