A uniform conducting wire of length 12a and resistance ' R ' is wound up as a current
carrying coil in the shape of,
(i) an equilateral triangle of side ' a '.
(ii) a square of side ' a '.
The magnetic dipole moments of the coil in each case respectively are:

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 different types of magnetism are - Diamagnetism, Paramagnetism, and Ferromagnetism.