Advertisements
Advertisements
प्रश्न
What is the magnetic induction? Explain with the help of a diagram.
Advertisements
उत्तर
The property by which an ordinary piece of iron acquires magnetic properties temporarily due to the presence of another magnet close to it is known as magnetic induction
Take a long nail. Put it on the arm of a stand. Spread some iron pins on the base of the stand. You will find that the pins do not get attracted to the nail. Now touch a magnet at the end of the nail. As the end is brought close to the head of the nail, some pins cling to the nail. It happens because the nail turns into the magnet and acquires the properties of magnetism. The moment you remove the magnet from the head of the nail. The pins will fall down. It will no more be a magnet.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
Answer the following.
Why is it not possible to isolate a single magnetic pole?
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
If a magnet is carefully broken into two pieces as shown in figure (i), how does the magnetic strength of each piece compare with that of the original magnet? If another magnet is carefully broken in half along its long axis shown in figure (ii), how would the strength of each piece compare with that of the original magnet?
What do you understand by the term magnetic declination?
Give scientific reason:
Not attraction but repulsion is a sure test of magnetism.
What is a neutral point?
An object that is attracted by magnet.
The south pole of a bar magnet and the north pole of a U-shaped magnet will _______.
