The Difference between DC and AC currents

A. Definition of Flow

The definition of electric current in general is energy that can be channeled through a conductive medium in the form of a cable, and the presence of this electric current is due to the electric charge flowing from the positive channel to the negative channel. Electricity itself is divided into 2 types, namely AC currents and DC currents.

·       AC (Alternating Current )

AC electric current or alternating current, which is large electricity and the direction of the current is always changing or alternating. AC current electricity will form waves which are commonly known as sinusoidal waves.

·       DC (Direct Current)

DC electric current or Direct current, namely direct electric current. Previously, the flow of DC electric current was said to flow from positive to negative. However, based on observations made by experts who show that direct current is a current that flows from negative to positive pole.

 

B. Difference of AC and DC Electric Current

Ø  Direct Current electricity ( DC )

where the electric current moves in the direction of the positive pole to the negative. If the current moves from the positive pole to the negative pole, the electrons move from the negative pole to the positive, as shown in the animation below. DC electricity is usually generated by batteries.


Ø  Alternating Current electricity (AC)

in which the direction of the current does not move from the positive pole to the negative, but the current is back and forth. Here's an animated image below. This AC electric current is generated by an AC generator.


C. Conclusion

So in DC electricity, the electric current always moves in the same direction, and is usually a fixed value.

Meanwhile, in AC power, the electric current sometimes moves clockwise, sometimes it moves counterclockwise. Usually, the changes are sinusoidal.

 

  

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