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Iron Filings Test around a Bar Magnet

A U-shaped pe...

Question

A U-shaped permanent magnet attracts iron less strongly than a bar magnet.

A

True

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B

False

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Solution

The correct option is B False
Bar magnet:
A bar magnet is a rectangular piece of an object, made up of iron, steel, or any other ferromagnetic substance
It shows permanent magnetic properties.
U-shaped:
U-shaped magnet is also known as a horse-shoe magnet made artificially.
It is used for producing electricity in electric bell or other equipment.
U-shaped magnets show a strong magnetic field as compared to a bar magnet.
So, the given statement is false.

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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. A light steel bar and a light iron bar are attracted to a magnet as shown. What will possibly happen when the magnet is removed?

An iron metal bar can be converted into a permanent magnet.

Why bar magnets always attract objects made of iron,cobalt and nickel rather than gold,silver?

Statements given below are incorrect. Write the correct statements.

A horse shoe magnet causes less magnetic attraction than a bar magnet.

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Iron Filings Test around a Bar Magnet

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