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Byju's Answer
Standard VI
Physics
Poles of a Magnet
Horse-shoe ma...
Question

Horse-shoe magnet should be stored by keeping a bar of soft iron ________________.


A

at its south pole

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B

at its north pole

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C

across its poles

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D

at the centre

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Solution

The correct option is C

across its poles


Horse-shoe magnet should be stored by keeping a bar of soft iron across its poles.


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Q.

The magnetic field lines produced by a bar magnet :

(a) originate from the south pole and end at its north pole

(b) originate from the north pole and end at its each pole

(c) originate from the north pole and end at its south pole

(d) originate from the south pole and end at its west pole

Q. Fill in the blanks with the appropriate word.
(a) If a bar magnet is hung by a thread tied at its centre, its north pole becomes steady in the direction of the ................ Pole of the earth.
(South, north, east, west)
(b) If a bar magnet is cut into equal pieces by cutting it at right angles to its axis at two places, ........... bar magnets are formed, and a total of ................ poles are formed.
(6,3,2)
(c) There is repulsion between the .......... poles of a magnet, and attraction between its ............ poles.
(opposite, like.)
(d) When magnetic material is taken close to a magnet, the material acquires ............... .
(permanent magnetism, induced magnetism)
(e) If a magnet attracts a piece of metal, that piece must be made of ............. .
(any other metal but iron, magnetic material or iron, non-magnetic material)
(f) A magnet remains steady in a .............. direction.
(east-west, north-south)
Q.

Question 4

North pole of a magnet can be identified by

(a) Another magnet having its poles marked as North pole and South pole.

(b) Another magnet no matter whether the poles are marked or not.

(c) Using an iron bar.

(d) Using iron filings.

Q. The distance between the poles of a horse shoe magnet is 0.1 m and its pole strength is 0.01 A-m. The induction of magnetic field at a point mid way between the poles will be :
Q.

If the north pole of a bar magnet is brought closer to a spherical iron ball then where will its induced north pole be?


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