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Magnetism

Blazing goIITian

 Joined: 23 Dec 2011 Post: 1189
9 May 2012 10:02:08 IST
1 People liked this
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pole strength of a magnet
Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics , Magnetism

how cn we find pole strength of a magnet

Blazing goIITian

Joined: 1 Apr 2007
Posts: 4025
9 May 2012 14:48:04 IST
1 people liked this

The pole strength of a bar magnet may be determined by measuring the force F exerted

on one pole of the magnet by an external magnetic field B0.  The pole strength is then
defined by
m = F/B0

Pole strength (m) :
i) Pole strength is a scalar.
ii) S.I unit is ampere-metre.
iii)Dimensional formula of m = [IL]
iv) It (a) depends on nature of the material of the magnet (b) depends on level of magnetisation (c)
is directly proportional to area of cross-section.
v) Pole strength is independent of the shape of the magnet.

Blazing goIITian

Joined: 23 Dec 2011
Posts: 1189
11 May 2012 15:44:51 IST
0 people liked this

THANK U SIR

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