The paper clips are attracted to both magnetic poles of a magnet.
If you suspend a bar magnet by a string from its centre, the magnet points in a north-south direction.
Like poles repel each other.
Unlike poles attract each other.
Concept of Magnetic Field
A magnet produces a magnetic field in the space around it. If another magnet is placed in the field, it experienced a magnetic force. We can represent a magnetic field with magnetic field lines. Magnetic field lines run from the magnetic north pole to the magnetic South Pole.
The Density of magnetic field lines represents by magnitude of magnetic field
stronger field - field lines are closer together
weaker field - field lines are further apart
Visualizing Magnetic Field
We can visualize magnetic field lines using iron filings.
We can also visualize magnetic field lines using a number of plotting compasses.Needle of a compass experience the magnetic forces.
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