Magnetic Effects of Electric current

Magnetic Effects of Electric current

Magnetic Effects of Electric current

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Question-1

Why does a compass needle gets deflected when brought near a bar magnet?

Solution:

A compass needle is, in fact, a small bar magnet. If this is brought near another bar magnet, the like poles repel and the needle gets deflected.

Question-2

Draw magnetic field lines around a bar magnet?

Solution:

Question-3

List the properties of magnetic lines of force.

Solution:

a) Magnetic lines are directed from the north pole towards the south pole.

b) They do not cross each other.

c) They are more crowded near the poles than at any other region in the field.

d) They are closed curves.

e) In the uniform magnetic field, the lines of force are parallel to one another.

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