Q1
What poles does every magnet have?
ANorth and south
BEast and west
COnly north
DOnly south
ICSEClass 9 (ICSE)PhysicsCh 10 · Topic 1
Magnetism
Magnetism is a force between magnetic materials, with properties like poles, magnetic fields, and applications in various technologies.
Core concept
Every magnet has a north and south pole, with like poles repelling and unlike poles attracting each other.
How it works
A magnetic field is the region around a magnet where its influence can be detected, often visualised using field lines.
Why it matters
The Earth itself acts like a giant magnet, with a magnetic field that a compass needle aligns with to point toward magnetic north.
Key detail
Electromagnetism, the relationship between electricity and magnetism, is used in motors, generators, and many modern technologies.
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Quick notes
• Every magnet has north and south poles.
• Like poles repel; unlike poles attract.
• A magnetic field surrounds a magnet.
• It's visualised using field lines.
• Earth acts like a giant magnet.
• A compass aligns with Earth's magnetic field.
• Electromagnetism relates electricity and magnetism.
• It's used in motors and generators.