NEET Physics Bar Magnet MCQ Question
Consider a diagram showing a bar magnet placed in a horizontal plane with its north pole facing the magnetic north. Null points are observed on the axis of the magnet at a specific distance. Which of the following scenarios will create these null points?
The magnetic field due to the magnet is equal and opposite to the horizontal component of the earth's magnetic field.
The magnetic field due to the magnet is greater than the horizontal component of the earth's magnetic field.
The magnetic field due to the magnet is less than the horizontal component of the earth's magnetic field.
The magnetic field due to the magnet is perpendicular to the horizontal component of the earth's magnetic field.
Correct Answer
Detailed Explanation
At null points, the field due to the magnet is equal and opposite to the horizontal component of the earth's magnetic field, as mentioned in Chunk 4.
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