AC: Alternating Current
Full form of ac:- Alternating Current. It refers to a current in which movement of electric charge changes direction periodically. In other words, alternating current changes its direction and magnitude periodically, i.e., it starts from 0 grows to maximum, r
eturns to 0 and again grows to the maximum in the opposite direction and then again reaches to original value 0.
This cycle is repeated continuously as long as the AC is flowing in the circuit. Alternating Current is different from direct current (DC) as DC flows only in one direction. The generation and transmission of AC are very easy as compared to DC. So, it is the AC that is used in mains-wired buildings such as homes, offices, factories and other buildings.
AC is also used in electric motors that convert electric energy into mechanical energy. Electric motors are present in various electrical appliances like washing machines, refrigerators, etc.
Alternating Current Production:
AC can be generated by using devices that are known as alternators. However, there are also different methods to generate AC by using various circuits. Besides this, one of the easiest ways to produce AC is by using a single coil AC generator that comprises two-pole magnets and a single loop of rectangle-shaped wire. In this method, AC is produced based on Faraday's principle of electromagnetic induction in which mechanical energy is converted into electrical energy.