Question
Physics Question on Types of Magnets
The magnetic lines of force inside a bar magnet
A
are from north-pole to south-pole of the magnet
B
do not exist
C
depend upon the area of cross-section of the bar magnet
D
are from south-pole to north-pole of the magnet
Answer
are from south-pole to north-pole of the magnet
Explanation
Solution
The magnetic lines of force inside a bar magnet are from the south pole to the north pole of the magnet.
Here are some important properties of magnetic field lines:
- Magnetic lines of force make closed loops.
- Field lines bulge out when going from an area of higher permeability to an area of lower permeability. The lines going from the surface of the magnet to the air density of the field line decrease.
- All magnetic field lines have the same strength and never cross each other.
- By convention, these field lines seem to originate from the north pole & end in the south pole of a bar magnet.
Read more about:Magnetic Field and Field Lines