ELECTROMAGNETIC INDUCTION-Physics Demonstrations

Jun 17th, 2015
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THEORY: The phenomenon of production of emf in a conductor due to a change in magnetic flux passing linked with it is called electromagnetic induction.We have a electric conductor coil(for example a copper coil)which have two ends connected to a galvanometer as shown in figure and move a bar magnet into the coil

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ELECTROMAGNETIC INDUCTION.Physics Demonstrations.By Arushi Sharma12th D, Amity SaketCERTIFICATEThis is to certify that Arushi Sharma of class 12th-D has done this demo experiment under my guidance and this is her original work. Physics TeacherAmity International School.ACKNOWLEDGEMENTI express my sincere thanks to Mr.Sudeshwar Pandey my physics teacher, for his guidance and kind cooperation that made this project successful. Arushi Sharma12th DOBJECTIVE1. To demonstrate the occurrence of induced e.m.f.2. To demonstrate the effect of separation in mutual induction between pair of coil.THEORYThe phenomenon of production of emf in a conductor due to a change in magnetic flux passing linked with it is called electromagnetic induction.We have a electric conductor coil(for example a copper coil)which have two ends connected to a galvanometer as shown in figure and move a bar magnet into the coil and out of it ,we shall observe a slight deflection of needle in the galvanometer. This demonstrates that the change in magnetic lines of forces passing through the coil causes production of emf in the coil. Now if we keep magnet stationary, we shall observe that there is no movement of galvanometer needle showing that there is no change in the magnetic flux liked with the coil. The emf produced in the above process is called induced emf .The electromagnetic induction is governed by Faraday's laws and Lenz's Law.FARADAY'S

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