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प्रश्न
The alloys called ______ and ______ are used for making industrial magnets.
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उत्तर
The alloys called alnico and nipermag are used for making industrial magnets.
Explanation:
Alnico and Nipermag are special mixtures of metals used to make strong and long-lasting magnets for machines. They can hold their magnetism for a long time and are used in industries. Alnico is made from aluminium, nickel, cobalt, and iron, while Nipermag is made from nickel, iron, and titanium. These materials make the magnets stronger than ordinary iron.
संबंधित प्रश्न
State three important uses of a magnet.
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
State if the following statement is true or false. Correct the statement if it is false.
As we move away from a magnet, its attraction power weakens.
Define the following term regarding a bar magnet:
Magnetic axis
Write the answer in your word.
What are the practical uses of a magnet?
Give scientific reason:
Two steel needles hanging from the lower end of a vertical bar magnet do not hang vertically.
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
How can you identify non-magnetic materials? Give an example of a nonmagnetic material.
What will happen when we place magnets near cell phones, computers, and DVDs?
The pole of a freely suspended magnet that points towards the north is called the south pole and what points towards the south is the celled north pole.
