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if the direction of the current keeps changing ( ac), then the direction of the magnetic field keeps changing with the same frequency! .. thats all i know :P
but then how do we draw it?
you can't draw it.. these fields are a function of time.. are you asking me a graph of field vs time?
nope the paterns? of field lines
yea well .. at every instant they would keep changing.. !! you ll have to introduce time axis somehow? :-/.. ishaan is much better .. he ll come up with something now :D
oh.thnks and lets see what he brings out :P
hmm can't we use right hand thumb rule |dw:1327825525015:dw||dw:1327825574961:dw|I think the direction changes right? i mean in AC current the direction of current changes with every cycle.
yeah then how do we show it in a solenoid, both the direction?
lt hand rule only right?
solenoid hmm lemme think |dw:1327825727114:dw|i am only using right hand thumb rule
Yea but.. she wants to show the pattern of magnetic fields.. and besides . isn't that just the cross section??? . thushanth, you want only crossesctional view or the whole solenoid?
okies there is a magnetic field outside and inside the solenoid
what you want
the pattern, show it in the solenoid..
the magnetic force is strong inside the solenoid only so you can ignore the other lines of magnetic force. and due to ac current the magnetic force will changes it's direction
its* not it's
so v r nt able to show the pattern?
yeah math3v4 exactly like that but thushanth the direction will change every cycle
oh, so v r nt able to show the chnge in direction right.
no there is no one particular direction you will have to show both of the directions
drw two diagrams.?