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Lec14-2-LPN - ture 14-1 ture Magnetic Monopoles Does there...

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cture 14- cture 14-1 Magnetic Monopoles How can you isolate this magnetic charge? Try cutting a bar magnet in half. In fact no attempt has been successful in finding magnetic monopoles in nature. Does there exist magnetic charge , just like electric charge? An entity which carried such magnetic charge would be called a magnetic monopole (having + or - magnetic charge).
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cture 14- cture 14-2 Magnetic Field B Magnetic force acting on a moving charge q depends on q, v. (q>0) v B × r ur If q<0
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cture 14- cture 14-3 Magnetic Force on a Current Consider a current-carrying wire in the presence of a magnetic field B . There will be a force on each of the charges moving in the wire. What will be the total force dF on a length dl of the wire? Suppose current is made up of n charges/volume each carrying charge q < 0 and moving with velocity v through a wire of cross-section A . A
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cture 14- cture 14-4 Cyclotron "Dees" in constant magnetic field B Alternating voltage V is applied between the
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