1. The magnets that never lose their magnetic properties are called-------
2. The region around the magnet where its magnetic influence can be felt is called---
is reduced when bar magnet is hammered.
4. The temperature at which the ferro magnetic material becomes paramagnetic is called
3.
A
st
5. Name the magnet which is made from the alloy of Aluminium, Nickel and Cobalt Mention
its type.
А
6.
is the strongest magnet which is exist in the earth.
7. Like poles of the magnet ------- each other.
8.
of a magnetic always exists in pair.
9. Name some daily appliances in which magnets are used.
10. In which direction does the magnetic field around the barmagnet lie?
Answers
Answer:
1.permanent magnet
2.magnetic field
5.horse shoe magnet,bar magnet
6.neodymium
7.repel
9.motors,mri
10.from north to south pole
Answer:
1) permanent magnets.
2) magnetic field .
4) curie temperature.
5) Alnico alloy, an iron alloy with aluminum, nickel and cobalt. Alnico alloys make strong permanent magnets. They are widely used in industrial and consumer electronics.
6)rare earth neodymium magnets.
7)repel each other
9)refrigerator, microwave oven and electric fan
10)A freely suspended magnet always rests in the north-south direction because the magnetic south pole of the earth lies in the geographic north direction and the magnetic north pole of the earth lies in the geographical south direction.
I didn't understand the 3 and the 8th question.Please write it properly
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