MCQ
Magnetic lines of force:
- AForm closed circuits.
- BCannot intersect.
- CAre crowded together near the poles.
- ✓All the above are correct.
✓
Answer
Correct option: D.
All the above are correct.
They always form complete closed loops. Unlike lines of electric flux which radiate from and terminate at the charged surfaces, lines of magnetic flux exist all the way through the magnet.
They behave as if they are elastic. That is, when distorted they try to return to their natural shape and spacing.
The lines of force of magnetic field are radiated from the north $(N)$ pole to the south $(S)$ pole.
Flux lines do not cross or interact to each other.
The density of lines of magnetic force indicates the strength of field at the point. Since strength is greatest at the poles, the magnetic lines of force are crowded there.
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