NEET Physics Bar Magnet MCQ Question
Which of the following statements about a bar magnet is correct?
A bar magnet's torque in a uniform magnetic field is given by the product of its magnetic moment and the magnetic field strength.
A bar magnet's magnetic poles can be isolated to create a north and a south pole separately.
The magnetic field lines of a bar magnet can cross each other at any point.
Cutting a bar magnet in half results in two pieces that have only one pole each.
Correct Answer
Detailed Explanation
The torque on a bar magnet in a uniform magnetic field is indeed calculated using the formula τ = m × B, as stated in the summary. The other statements reflect common misconceptions about magnetic poles and field lines.
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