When you cut a magnet in half, each piece becomes a new magnet with its own north and south poles. This occurs because the magnetic domains realign, ensuring that both pieces have opposite poles.
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The law of magnetic poles states that like poles repel and unlike poles attract. This means that a north pole will attract a south pole but repel another north pole, and vice versa.
Magnetic poles are the regions at the ends of a magnet where the magnetic force is strongest. Every magnet has two poles: a north pole and a south pole, which are responsible for magnetic interactions.
A magnetic field can be visualized using iron filings or a compass. Iron filings sprinkled around a magnet align along the field lines, while a compass needle aligns itself with the magnetic field direction.
Salt is obtained by keeping seawater in shallow pits and exposing it to sunlight and air. The water evaporates, leaving behind a solid mixture, from which common salt is further purified. NCERT Science Textbook Curiosity Science Session 2024-2025.