matter on electrostatics
coulomb potential difference charge density
Hi sunil!
Anything which occupies space and has mass is called matter.
The coulomb (C) is the SI unit of electric charge. One coulomb is equal to the charge of 6.24151×1018 protons or -6.24151×1018 electrons.
Potential difference between two points is the work done in bringing a unit positive charge from one point to the other. The unit of potential difference is volts (V).
The linear charge density is the amount of electric charge in a line. It is measured in C/m.
The surface charge density is the amount of electric charge per unit area. It is measured in C/m2.
The volume charge density is the amount of electric charge per unit volume. It is measured in C/m3.
Electric charge density is denoted byr.
Cheers!!