A magnet is a material that produces a magnetic field, capable of attracting iron and other magnetic materials. Understanding the properties of magnets and their field lines is essential for Class 6 through Class 10 Science.
Poles: Every magnet has exactly 2 poles — North and South.
Sure Test of Magnetism: Repulsion.
Field Line Direction: N→S outside, S→N inside.
Field Lines Never Cross: Crossing would imply two directions at one point.
Key properties: attracts magnetic materials, directive property (aligns N-S), like poles repel/unlike attract, cannot be cut to separate poles, loses magnetism on heating or hammering.
They go from N to S outside, never cross each other, form closed loops, and their density indicates the field strength.
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