What is magnetic field intensity?
Derive the expression for
magnetic
potential due to bar magnet.
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Magnetic moment of magnetic dipole m = qm 2l, its direction is from S to N. Consider a point P on the axis of magnetic dipole at a distance r from mid-point O of dipole. but opposite to each other and B1>B2. This is expression for magnetic field intensity at axial position due to a short bar magnet.
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