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 lin
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
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Correct Answer - D
`(B)/(0.2)=(M//(5)^(3))/(2M(10)^(3))=(10//(5)^(2))/(2)=0.5oersted`
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