A short bar magnet has a magnetic moment of 0.48 J T⁻¹. Give the direction and magnitude of the magnetic field produced by the magnet at a distance of 10 cm from the centre of the magnet on (a) the axis, (b) the equatorial lines (normal bisector) of the magnet.

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CASE_STUDIESMagnetic Field Intensity Due to Magnetic Dipole on Axial Line2 sub-questions

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A small magnetised needle P is placed at the origin of x-y plane with its magnetic moment pointing along the y-axis. Another identical magnetised needle Q is placed in two positions, one by one. Case 1 : at (a, 0) with its magnetic moment pointing along x-axis. Case 2 : at (0, a) with its magnetic moment pointing along y-axis. (a) In which case is the potential energy of P and Q minimum ? (b) In which case is P and Q not in equilibrium ? Justify your answers.

TextMagnetic Field Intensity Due to Magnetic Dipole on Axial LineMagnetic Field Intensity Due to Magnetic Dipole on Equatorial Line