An electric current is a flow of electric charge in electric circuits this charge is often carried by moving electrons in a wire it can also be carried by ions in an electrolyte or by both ions and electrons such as in an ionised gas plasma know more about these in current electricity class 12 notes. I direct current dc its magnitude and direction do not change with time a ceil battery or dc dynamo are the sources of direct current ii alternating current ac an electric current whose magnitude changes continuously and changes its direction periodically is called alternating current ac dynamo is source of alternating current. Current electricity class 12 notes pdf download cbse class 12th revision notes for chapter 3 current electricity in pdf format for free revision notes for current electricity class 12 notes and get score high in exams these are the current electricity class 12 notes prepared by team of expert teachers. Free pdf download of cbse class 12 physics revision notes short key notes for chapter 3 current electricity to score high marks in exams prepared by expert physics teachers from latest edition of cbsencert books. Physics notes for class 12 pdf free download we are providing you the free physics notes for class 12 pdf chapter wise pdf for cbse students these notes will provide you the overview of all chapters and will help you to understand the important topics under each chapters
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