Which property of magnetic field lines explains the absence of magnetic monopoles in classical electromagnetism?
They form continuous closed curves
Magnetic field lines are an imaginary representation used to picture the direction and strength of a magnetic field around a magnet or a current-carrying body.
Unlike electric field lines that start on positive charges and end on negative charges, magnetic field lines never have free ends; they emerge from the north pole, loop through the surrounding space, enter the south pole and continue inside the magnet back to the north, forming continuous closed curves.
Because these loops have no beginning or end, there can be no isolated source of magnetism, which is why magnetic monopoles do not exist in classical electromagnetism.
Hence, the correct answer is They form continuous closed curves.
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Important Questions from Magnetism
- The magnetic field around a straight current-carrying conductor:
Magnetic field is a quantity that has___________________ .
- The right-hand thumb rule is used to find which of the following?
- How are the magnetic field lines arranged inside a current-carrying solenoid?
- What does it mean when magnetic field lines are drawn closer together in a diagram?
