What kinds of currents can be divided according to their size and direction?

* Question

* Answer

(1) A current whose direction does not change with time is called a direct current.

(2) A current whose magnitude and direction do not change with time is called a steady current.

(3) A current whose magnitude changes with time and whose direction does not change with time is called a pulsating direct current.

(4) The current that changes in size and direction at any time is called AC current.