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The circuit in which switch is closed and the electric current passes in the circuit is called closed circuit. Class 12 physics notes chapter 1 electric charges and fields. Work is done on a charge when electric potential energy is changed to kinetic energy of the charge. Pdf methods of work and energy physics notes for iit. Electricity deals with the motion of the electric charge. Class 10 physics ch2 magnetic effect of electric current. Physics form 3 notes 10 this category contains physics form 3 notes as aggregated from the various high school approved text books, including klb,etc.
Current electricity class 12 notes physics mycbseguide. Pdf link for semiconductor hand written notes physics class 12. Department of physics, north carolina state university, raleigh, north carolina 27695. The directed rate of flow of electric charge through any crosssection of a conductor is known as electric current. Support for mit opencoursewares 15th anniversary is provided by. The current only flows in an electrical circuit when the path is completely closed, forming a loop. Cbse class 12 physics revision notes chapter3 current electricity electrical conductivity.
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Cbse physics notes for class 12 current electricity electric current physics notes class 12. In electric circuits this charge is often carried by moving electrons in a wire. An atom consists of protons positive, neutrons neutral, and electrons negative. Department of physics, new jersey institute of technology, newark. Current electricity physics 94 and the quotient q i t 3. The concept of work in physics is much more narrowly defined than the common use of the word. The concept of electricity arises from an observation of. These notes are intended as an addition to the lectures given in class. Shneidman department of physics, new jersey institute of technology, newark, nj 07102 dated.
Physics electricity 2 electricity electric current electric current is expressed as the amount of charge flowing through a particular area in unit time. Cbse notes class 12 physics current electricity aglasem. This is possible only when you have the best cbse class 12 physics study material and a smart preparation plan. Notes chapter 1 electric charges and fields contains all the topic as per the syllabus of ncert. Candidates who are ambitious to qualify the class 12 with good score can check this article for notes. Important notes are also helpful for revision when you have less time and have to study many topics. Each topic is explained in very easy language with colored diagrams. February 28, 2020 abstract these notes are intended as an addition to the lectures given in class. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in an ionised gas plasma. Content additional notes from dr c mains electricity is an ac supply.
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