Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Hard-Class 12
Consider a bar magnet with a magnetic moment of 2 Am^2. If the magnetic field at a point along its axial line at a distance of 50 cm from its center is 5 x 10^-5 T, what is the approximate value of the magnetic field at the same distance along the equatorial line?
A
2.5 x 10^-5 T
B
5 x 10^-5 T
C
7.5 x 10^-5 T
D
1 x 10^-5 T
Correct Answer
Option A
Detailed Explanation
For a bar magnet, the magnetic field along the axial line is twice that along the equatorial line at the same distance. Therefore, the field at the equatorial line is approximately half of that along the axial line, which is 2.5 x 10^-5 T.
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