Question : Which of the following claims concerning the magnetic lines of force inside a bar magnet is true?
Option 1: Do not exist
Option 2: From the S-pole to the N-pole of the magnet
Option 3: Depends on the cross-sectional area of the bar magnet
Option 4: From the N-pole to the S-pole of the magnet
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Correct Answer: From the S-pole to the N-pole of the magnet
Solution : The correct answer is From the S-pole to the N-pole of the magnet.
In the case of a bar magnet, which has two poles—a North (N) pole and a South (S) pole—the magnetic lines of force always travel from the South pole (S-pole) to the North pole (N-pole) internally within the magnet. This means that within the bar magnet itself, the magnetic field lines flow from the south pole to the north pole. This internal flow of the magnetic field lines gives the bar magnet its magnetic properties.
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