AC is constantly changing magnitude and direction. AC is how mains electricity is produced from turbines.
DC is constant. And is produced from a battery and used in some sensitive components like in computing.
![AC](https://www.tutormyself.com/wp-content/uploads/AC.png)
![DC](https://www.tutormyself.com/wp-content/uploads/DC.png)
AC is constantly changing magnitude and direction. AC is how mains electricity is produced from turbines.
DC is constant. And is produced from a battery and used in some sensitive components like in computing.