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Post:	138

25 Aug 2007 15:30:18 IST

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is the ans wrong in hcv2?.....

None

in the book hcv 2 chap...mag fld due 2 i ,Q12.. .. (b) how 2 calc field on Q1&Q2(Q1..&..Q2) r points in the diag .........not Qiestions

in ques-50 is the ans wrong? how can their b field at the axial pts???if not give hits/logic/soln as u wish..

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Rahul Karmakar

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Joined: 16 Dec 2006

Posts: 214

27 Aug 2007 12:56:33 IST

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Ques 50

First APPLY Ampere's LAw

For x<r
B.dS =

i (enclosed)

i(enclosed)= i X (pi) X x²

------------

(pi) X r²

dS = pi X r²

NOw For x>r

Simply apply

B . pi r^2 = (munot) X i

Substitute the values and the Answer is correct

Rahul Karmakar

Scorching goIITian

Joined: 16 Dec 2006

Posts: 214

27 Aug 2007 13:21:07 IST

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Is your COnfusion Over

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