Advertisements
Advertisements
प्रश्न
How do you account for the following fact?
Bar magnets lose their magnetism when heated strongly.
Advertisements
उत्तर
Bar magnets lose their magnetism when heated strongly. Due to heat energy, the kinetic energy of the molecules of a barg magnet increases. Thus from straight-line molecular chains, they form closed molecular chains, and hence, magnetism is lost.
APPEARS IN
संबंधित प्रश्न
Fill in the blank to complete the sentence :
The two ends of a magnet are called __________.
Fill in the blank to complete the sentence :
Like poles of a magnet ______________ each other.
'Induced magnetism is temporary'. Comment on this statement.
How do you account for the following fact?
Iron becomes magnetized when placed in a coil carrying direct current.
How do you account for the following fact?
Steel makes better permanent magnet than soft iron.
What is magnetic induction?
Explain a suitable experiment of magnetic induction?
A conductor B is charged by bringing another charged body A in contact 
What will be the charge gained by B?
A conductor B is charged by bringing another charged body A in contact
Explain the process of charging B.
Explain, what is meant by magnetic induction.
