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Abhishekdas
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Homework Statement
There is a circular loop in the horizontal plane and a bar magnet (with its north pole downwards) Is falling down along the axis of the loop...
Now is the acceleration of the bar magnet less than,greater than or equal to g?
Homework Equations
The Attempt at a Solution
The explanation in the book is given as: The side of the loop facing the bar magnet is getting a North Polarity (this is because the direction ofcurrent is antclockwise from top by Lenz's Law). Now like poles repel and hence the bar magnet's acceleration is less than g...
Firstly I am not totally convinced by this concept . I mean i know like poles repel from a young age but at this stage i would like to know how exactly it happens(like in electrostatics Coulumb's Law gives the dir of forces which proves that like charges repel) and it would be great is someone explains me that.
Secondly i was trying to figure this out with the concept of force due to a magnetic field...But i can't do so because in a bar magnet where is tha charge? and what is the velocity? So basically I am clueless...So guys help me out...
I've attached a diagram for the sum if you need it...
Thank you...
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