NEET Physics Bar Magnet MCQ Question
Which of the following statements about bar magnets is correct?
Bar magnets have two poles, North and South, that point towards the geographic poles when freely suspended.
The magnetic field lines of a bar magnet can cross each other, indicating multiple field directions at a point.
The strength of a magnetic field is weaker where fewer field lines cross per unit area.
Magnetic field lines of a bar magnet can form closed loops in empty space.
Correct Answer
Detailed Explanation
Bar magnets indeed have two poles, and when suspended freely, they align with the Earth's magnetic field, pointing towards the geographic north and south. The other statements are incorrect as magnetic field lines do not cross or form closed loops in empty space.
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