InterviewSolution
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                                    A coilof insulated copper wireis connctedto a galvnometer . Whatwill happen if a barmagnet is (i) pushed intothe coil , (ii)withdraw from insidethe coil, (iii) heldstationaryinside the coil ? | 
                            
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Answer» Solution :(i) The galvanometer will show a momentarydeflection in onedirection. Itmeans a currentis INDUCED inthe coilin one direction due to the relativemotion between the coil ANDTHE MAGNET.  (ii) THEGALVANOMETER will showa momentray deflection in the oppositedirection due totherelativemotionbetween the coil and the magnet. (III)There will be no deflectionin the galvanometer . Itmeans no currentisinducedin the coil , as there is no relative motion betweenthe coiland themagnet.  | 
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