Static electricity is an electric charge that does not flow or electricity the electric charge of which lies at a rest condition.
An atom consists of protons (positive charges), electrons (negative charges) and neutrons (has no charges).
A body is said to be positively charged, if the body lacks electrons (protons > electron, while a body is said to be negatively charged, if the body has excessive electrons (proton < electron).
Bodies with similar electric charge, if they are bought close to each other, will repel each other, while bodies with dissimilar electric charges, if they are bought closer, will attract each other.
Coulomb's law
" The force of attraction or repulsion between two electric charges is directly proportional to their charges and inversely proportional to the square of distance between the two charges."
mathematically, Coulomb's law is written :
Electric field is a region around an electrically charged body that is still influenced by electric force.
Electric force line in a positive charge tend to go away from positive charge , while electric force lines in a negative charge tend to go inward approaching the negative charge.
Electric field strength at a point at a certain distance from a a source charge Q is formulated as follows.
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