NEET Physics Bar Magnet MCQ Question
Consider a diagram showing a bar magnet placed with its axis perpendicular to the earth’s magnetic field direction. If the magnetic moment of the bar magnet is 5.25 × 10^–2 J T^–1, what is the resultant field direction at a point on its normal bisector where the field is inclined at 45° to the earth’s field?
The resultant field is perpendicular to the magnet's axis.
The resultant field is parallel to the magnet's axis.
The resultant field makes an angle of 45° with the magnet's axis.
The resultant field is along the earth's magnetic field direction.
Correct Answer
Detailed Explanation
Since the bar magnet is placed with its axis perpendicular to the earth's field and the resultant field at the normal bisector is inclined at 45° to the earth’s field, it indicates that the resultant field is perpendicular to the magnet's axis.
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