Magnetsim??

A wire of length l has current i
apply amperes law

âˆ«B.dx=Î¼i
B.2pir=Î¼i

B=Î¼i/2Ï€r ...(:P same as of infinite wire.)

But we know it should be

B=Î¼i(sinÎ±+sinÎ²)/4Ï€r

Explain what is wrong..
[3]

5 Answers

is statement mein sayad

B.2pir=Î¼i

coz u gotta select crrct amperian loop of uniform charg distrinuition effect to get gud results

see this>>>http://targetiit.com/iit_jee_forum/posts/highly_conceptual_2457.html

And see my explanation there.....n pls tell me if i m correct

opsie this was dioscussed..

But i think wrong post is pinked there.. post#3 is wrong

post#13 is correct

Yes...thanks!

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