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Magnetism
emi .... conceptual doubt
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sir,
when a conducting rod moves in a magnetic field as shown, the positive charges accumulate at A and negative charges at B. This creates an electric field inside the conductor. But in electrostatics, almost everything was based on the fact that no electric field is developed inside a conductor.
How is it possible ???
Isn't it contradicting ???
I may sound silly, but please take up the pains to explain me ... please
Comments (9)
heman ..
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Joined: 2 Dec 2007
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21 Jan 2008 20:30:39 IST
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SEE that was true onlr 4 ELECTROSTATIC conds...ie when the charges r at rest
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21 Jan 2008 20:45:43 IST
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see in elecstat the feild inside a conduc is zero due to cancelling of the field outside and the one due to the induced charges just below the surface....the basic thing was the force acting on the charged particles which eventually led to cancellation of electric field due to their accumulations...while in emi the force acts on the particle that is electron making it move accordingly but this force leads to accumulation of charges leading to an electric field getting produced force due to which at a certain value becomes equal to the magnetic force leading to development of emf......moreover ther is no field acting from outside which can lead to cancellation inside to give zero field........
22 Jan 2008 21:57:59 IST
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see Biki the charges aquire their respective positions in an electric field due to the forces acting on them...now they eventually align themselves in such a manner that the electric field gets cancelled on the inside.....so basically the charges move according to the forces acting on them and not purposely to cancel the electric field...it but eventually gets cancelled due to their positions...
23 Jan 2008 18:24:44 IST
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okay then
".....leading to an electric field getting produced force due to which at a certain value becomes equal to the magnetic force leading to development of emf......moreover ther is no field acting from outside which can lead to cancellation inside to give zero field........"
where does field acts from outside in electriostatics ??? ..which leads to cancellation of field inside...
u wrote that externl field is absent in emi ... but where is it present in electrostat.
".....leading to an electric field getting produced force due to which at a certain value becomes equal to the magnetic force leading to development of emf......moreover ther is no field acting from outside which can lead to cancellation inside to give zero field........"
where does field acts from outside in electriostatics ??? ..which leads to cancellation of field inside...
u wrote that externl field is absent in emi ... but where is it present in electrostat.












