Advertisements
Advertisements
प्रश्न
Fill in the blank.
Permanent magnets are generally made of steel, cobalt, nickel, or an alloy called ...............
Advertisements
उत्तर
Permanent magnets are generally made of steel, cobalt, nickel, or an alloy called ALNICO.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
Artificial magnets are weaker than the natural magnets.
Fill in the blank.
Temporary magnets are usually made up of .................
Select the correct answer
Making a magnetic substance a magnet by bringing it closer to another magnet without touching it, is
What are natural and artificial-magnets?
Describe the method by which an iron bar can be made a magnet.
State three differences between the temporary and permanent magnets.
Name the material of the core of an electromagnet for temporary magnet.
State if the following statement is true or false. Correct the statement if it is false.
Temporary magnets are made of cobalt.
It was observed that a pencil sharpener gets attracted by both the poles of a magnet although its body is made of plastic. Name a material that might have been used to make some part of it.
You are given an iron strip. How will you make it into a magnet?
