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CBSE Class 12-science Answered

physics
Asked by | 13 Jul, 2011, 03:55: AM
answered-by-expert Expert Answer
                                       
A magnetic dipole consists of two unlike poles of equal strength separated by a small distance.
The direction of magnetic moment is from South pole to North pole of the dipole.
 
 
The direction of magnetic induction :
 
1.  At a point on the axial line of the dipole
 
            
 
 

Magnetic induction (Bs) at P due to S pole of dipole is along PS and magnetic induction due to N pole of dipole is along NP produced.
Since N pole is nearer to the point P, so effective magnetic induction will be along NP produced.
 
 
2.  At a point on the equatorial line of the dipole
 
                           
 Magnetic induction (B) at P due to N pole of magnet is along NP produced and magnetic induction (B') at P due to S pole of magnet is along PS.
The resultant direction of magnetic field is parallel to NS i.e. along PS.
Answered by | 14 Jul, 2011, 01:05: PM

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