Point `A` and `B` are situated along the extended axis of `2 cm` long bar magnet at a distance x and `2x cm` respectively. From the pole nearer to the points, the ratio of the magnetic field at `A` and `B` will be
A
4 : 1 exactly
B
4 : 1 approx.
C
8 : 1 exactly
D
8 : 1 approx.
Text Solution
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The correct Answer is:
D
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