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Inside the magnet, field lines travel from?
North to south
South to north
West to east
East to west
South to north
Magnetic field lines are continuous closed loops. While outside a magnet the magnetic field lines travel from the North pole to the South pole, inside the body of the magnet they travel from the South pole to the North pole to complete the continuous loop.
Magnetic field lines are continuous closed loops. While outside a magnet the magnetic field lines travel from the North pole to the South pole, inside the body of the magnet they travel from the South pole to the North pole to complete the continuous loop.
∇⋅B=0 — Gauss's Law for Magnetism (Non-existence of magnetic monopoles)
∮B⋅dA=0 — Integral form of magnetic flux continuity
According to Gauss's Law for Magnetism, the net magnetic flux exiting any closed surface is zero (∇⋅B=0). This implies that isolated magnetic monopoles do not exist and magnetic field lines must form closed, continuous loops without any starting or ending points.
Outside the magnet, magnetic field lines emerge from the North pole and enter the South pole.
Inside the magnet, magnetic field lines return from the South pole to the North pole.
Magnetic field lines are continuous, closed loops with no beginning or end.
The density of field lines indicates the strength of the magnetic field.
Designing electromagnetic cores and magnetic circuits in electrical machines.
Analyzing flux leakage and magnetic path distribution in transformers and motors.
| Feature | Outside the Magnet | Inside the Magnet |
|---|---|---|
Direction of Lines | North Pole to South Pole | South Pole to North Pole |
Medium | Surrounding air or medium | Ferromagnetic magnetic material |
Option A (North to south) represents the direction of magnetic field lines outside the magnet.
Option C and Option D (West to east / East to west) are irrelevant directions regarding magnetic pole polarity.
B is correct — Inside a magnet, field lines complete the continuous loop by traveling from the South pole to the North pole.
Always pay careful attention to whether the question asks for field line direction inside or outside the magnet/solenoid, as exams frequently use this distinction as a trick.