Question

what is the difference between ac and dc

Answer 1

dc direct current has constant direction unlike ac alternating current alternating current is diacovered by Tesla and direct current is diacovered by Thomas Edison

Answer 2

Ac
==
AC means alternating current.
====
It stores energy .During it's charging energy get converted from electrical to chemical energy and get stored in it.And during it's use it get converted from chemical to electrical.
======

It can be recharged.
=====

It is used to produce high amount of current.

=================
=================
=================

=================
Dc
==
DC is direct current.
=======
During it's use energy get converted from chemical to electrical.
=========

It is use and throw.
========
It is used to produce low amount of current.
=======