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what is snow rule ?

Asked by Prateek Kadkol(student) , on 30/5/12


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EXPERT ANSWER

As answered previously...

This is not a rule in general rather this is a short cut to find the direction of the deflection of the needle of the magnetic compass needle when kept in some magnetic field produced by some current carrying wire. 

S---south (direction of current in the wire) 

N---north 

O---over (the location of the wire) 

W---west (deflection)

Posted by Kranav Sharma(MeritNation Expert)on 31/5/12

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