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The magnetic filed on the axis of a sh...

The magnetic filed on the axis of a short bar magnet at a distance of 10 cm is 0.2 oersted. What will be the field at a point, distant 5 cm on the line perpendicular to the axis and passing through the magnet ?

A

0.025 oersted

B

0.2 oersted

C

0.4 oersted

D

0.8 oersted

Text Solution

Verified by Experts

The correct Answer is:
D
`(B)/(0.2)=(M//(5)^(3))/(2M(10)^(3))=(10//(5)^(2))/(2)=0.5oersted`
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