magnetism...........chapter

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itzz relly hard to no wat topics hav to be learnt..........its aalll so confusing ............

plzzz help .............

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in this chapter uv gt 2 knw evrythng
dere r 3 basic things given in it
1.hw 2 get a magnetic field by passing of current
2.the force due 2 electric n magnetic fields
3.hw 2 generate current using a magnet
based on these 3 are given 3 examples n 3 rules 2 find them out
thats all

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thanks a lot

but vill u plzzz explain me..........electromagnetic induction .i mean d concept of it Embarassed

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When there is a change in the magnetic flux linked with the coil, emf(electromotive force) is induced and this takes place as long as there is a change in the flux. (flux means- the magnetic field lines.) this is called electromagnetic induction.

the change can be brought by:

1) an a.c. voltage( as in the case of a transformer)

2) relative motion between the magnet and a current carrying conductor( as in a dynamo)

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THANX A LOT ANU.................... Very Happy

Subject: Re: magnetism...........chapter Fri May 18, 2012 10:03 pm

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