Question

Arum fixes a sheet of white paper on a drawing board. He places a bar magnet in the Centre of

it. He sprinkles some iron filings uniformly around the bar magnet. Then he taps the board

gently and observes that the iron filings arrange themselves in a particular pattern.

9. (a) What dose the lines along which the iron filings align represent?

(b) Where the magnetic field lines are more crowded?

(c) Why do two magnetic field lines never intersect each other?

(d) What is the direction of the magnetic lines around a bar magnet?
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Answer 1

Answer:

a) the lines represent the magnetic lines of force

b) the magnetic field lines are more crowded near the poles of the magnet

c) two magnetic field lines never intersect each other as if they intersect that means there's two lines of force which is not possible

d) the direction of magnetic lines around a bar magnet is from north to south and anti-clock wise direction.

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