Question

What is the unit of electric charge?

Answer 1

Hint: Electric charge is the physical characteristics of matter that causes it to feel a force when placed in an electromagnetic field. There are two kinds of electric charge: positive and negative (generally carried by protons and electrons respectively). Like charges always repel each other and unlike charges generally attract each other.

Complete step by step answer:
First of all let us discuss what actually electric charge means. Electric charge is the physical characteristics of matter that causes it to experience a force if placed in an electromagnetic field. The Law of Conservation of Charge is a fundamental law and a universal law. Due to some specific symmetries in the structure of the universe, the total electric charge of an isolated system is always conserved. This means that the total charge of an isolated system is similar at all points in time.
The equation for electric charge is given as,
$q=It$
We know that $I$ is the current given by the unit of Ampere, and $t$ is the time in units of seconds.
Therefore the unit of $q$ is $A\operatorname{s}$ which in SI unit is represented as coulomb.

Therefore the unit of electric charge is given as coulomb, $C$.

Note: Electric charge is taken by subatomic particles. In common matter, negative charge is carried by electrons and positive charge is carried by the protons in the nucleus of an atom. No net charge usually means that the amount of positive and negative charges in the object are the same. Therefore an electrically neutral object does consist of charges. Protons are particles which are positively charged, electrons are carrying a negative charge, and neutrons are particles with no charge.