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InterviewSolution
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The magnetic potential at a point on the axial line of a bar magnet of dipole moment `M` is `V`. What is the magnetic potential due to a bar magnet of dipole moment `M/4` at the same point ?A. `4V`B. `2V`C. `V/2`D. `V/4` |
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Answer» Correct Answer - D Magnetic potential at a distance d from the bar magnet on its axial line is given by `V=mu_(0)/(4pi).M/d^(2) implies V prop M implies V_(1)/V_(2)=M_(1)/M_(2)` `implies V/V_(2)=M/(M//4) implies V_(2)=V/4` |
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