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Answer 1

Answer:

(1)

magnetic field lines are closed becz magnetic monopolies do not exit out side a magnetic direction of magnetic field lines r from north and south poles and inside the magnet the directions

(2)

the lines of magnetic field are closed lines the field directions are outward from the north pole into the south pole of the magnet

Answer 2

1)

They form continuous curves because field lines begin from north and end in south side. hence they form closed curves.

2)

The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and in to the South pole of the magnet. Permanent magnets can be made from ferromagnetic materials.

3)

• Don't touch them directly.
• If you see someone come into contact with electricity, do not touch them directly.
• Shut off the power, if possible.
• Separate them from the source.

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