A uniform magnetic field, parallel to the plane of the paper existed in space initially directed from left to right. When a bar of soft iron is placed in the field parallel to it, the lines of force passing through it will be represented by
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a
Figure (A)
b
Figure (B)
c
Figure (C)
d
Figure (D)
answer is B.
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Detailed Solution
Permeability of soft iron is maximum, so maximum lines of force tries to pass through the soft iron.