According to chapter 4 physics class 12 Moving Charges and Magnetism, what are the types of magnetism?

There are two types of electricity - static and current. The current electricity is divided into Alternating Current (AC) and Direct Current (DC). Based on the production methods, electricity is divided into - heat, chemical, pressure, light and magnetism.

There are four types of power supply - switch-mode power supplies, linear power supplies, linear power supplies, and programmable power supplies

According to this law, at any point, magnetic field due to a tiny current element is directly proportional to the current element length.

Tesla (T) is the SI unit of magnetic field. Tesla is named after Nikola Tesla.

The exact formula for the magnetic force per unit length between two parallel current-carrying conductors:

For more information, check: Force between parallel conductors