Do you know how the electric current gets to our homes and offices? Electricity flow is a flow of electrons through a wire. This flow is bifurcated into 2 types – alternating current (AC) and direct current (DC).
AC and DC differ based on the direction of the electricity flow.
In alternate current the movement of electrons keeps changing .It goes forward and then backward.
In direct current, the electricity flows in a single direction.
What is Alternate Current?
The current which goes back and forth in its direction is called alternate current. AC works on a frequency of 50-60 Hz. The AC can transform from High to low value or vice versa via a transformer. Therefore AC is regarded best for general household and industrial purposes
What is Direct Current?
In Direct current the electricity flow runs in one direction. It runs on zero frequency.
It is used for mobile phones, welding purposes, electronic equipment, and electric vehicles.
The Process of Generating Alternate Current
AC is generated through the alternator. This is a device specially designed to produce an alternate current.
The Process of Generating Direct Current
A commutator is a device that produces DC.
It generates DC by converting AC into DC. Batteries can also generate DC through a chemical reaction inside them.
The Advantages – AC vs DC
There are various advantages of AC voltage over DC voltage. Some of them are as follows–
- It is simpler to generate a current through AC rather than DC.
- AC encloses more space in comparison to DC.
- The loss of power is lesser in AC during transmission in comparison to DC.
- AC is less expensive than DC