Question

give three properties of bar magnet and magnetic field lines..?​

Answer 1

Answer:

$\Large\underline\mathfrak{Question}$

Give three properties of bar magnet and magnetic field lines..?

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$\Large\underline\mathfrak{Properties}$

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$\Large\bold\star\underline{\underline\textbf{Bar magnet \:}}$

→ A bar magnet attracts small pieces of material (metals) such as iron, steel, cobalt etc.

→ When a bar magnet is suspended freely, it always points in the north and South direction.

→ Like poles of a magnet repel each other and unlike poles attract each other.

→ Magnetic poles always exist in pairs.

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$\Large\bold\star\underline{\underline\textbf{Magnetic Field lines\:}}$

→ Magnetic field lines form continuous closed loops.

→ The tangent to the field line at a given point gives the direction of magnetic field at that point.

→ The strength of magnetic field is determined by the number of magnetic lines of force passing through unit area.

» i.e. the larger the number of field lines

crossing unit area, the higher is the value of magnetic field and vice versa.

→ Two magnetic field lines never cross each other.

Hope it helped u.

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Answer 2

1) There are two poles south and north .

2) There is repulsion between like poles and attraction between unlike poles .

3) There is magnetism around only poles not in centre .

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