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a wire is bent as a parabolic curve kept in x-y plane. the curve can be described by the equation x^2=6y. if a uniform magnetic field B=2*10^-3 k tesla (positive z direction) is applied, force experienced by the wire is nearly?

Physics
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oops. the wire carries a current i=2A
length ?
|dw:1359707566710:dw|

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Other answers:

So the wire extends from (-6,6) to (6,6) only right ?
we dont know the x coordinates.
Oh am sorry, I don't know why assumed the height to be 6, nevermind.
Okay, so the working formula is F = iBl
Where are you stuck ?
what should be l? or i always use idl * b. dl here..
l = distance between 2 ends of wire.
we should have x coordinates then?
nopes. distance between the ends is already given right,
|dw:1359708383481:dw|
Is that 6 ? or the co-ordinate on y axis (0,6) ?
coordinate on y axis.
I see, then use the given eqn, find co-ordinates of x, as I said before, they should come out to be (-6,6) and (6,6)
ohho.. ok. damn. it was easy. :P thank you.
you should also be able to find out direction of force, can you tell me what will that be ?
-j?
Yep, ^_^
hmm. thank you. :)
Note that direction of force is different at different points on the force, -j is the direction of net force. Anyways, glad to help.
different at different points of the wire*

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