Physics
Grade-8
Easy
Question
How many lines of force pass through a neutral point?
- 1
- 2
- Many
- 0
Hint:
A neutral point between two magnets is where the resultant magnetic force is null.
The correct answer is: 0
A neutral point is where the magnetic force of the two magnets is equal and opposite. Hence, the magnetic force at a neutral point is zero. This follows that no magnetic field line exists where there is no magnetic field.
Hence, Zero magnetic field lines pass through a neutral point.
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