Magnetism of a bar magnet: Field strength at the center. Compared to its poles, the magnetic field at the geometric center of a uniformly magnetized bar magnet is what? Choose the correct option.
IIT JEE
Physics
Difficulty: Easy
Choose an option
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AMinimum (approximately zero)
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BMaximum
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CExactly equal to pole strength
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DUndefined
Answer
Correct Answer: Minimum (approximately zero)
Explanation
Concept
- Magnetic field lines crowd at poles (strongest near ends).
- At the mid-point (center), contributions largely cancel → weakest field.
Final AnswerMinimum (approximately zero)