Advertisements
Advertisements
प्रश्न
Thamizh Dharaga and Sangamithirai were playing with a bar magnet. They put the magnet down and it broke into four pieces. How many poles will be there?
उत्तर
Each broken piece behaves like a separate magnet. Therefore, four pieces will have eight poles.
Conclusion:
Thus, we can conclude that unlike poles of a magnet attract each other, i.e., the north pole and the south pole of a magnet attract each other.
APPEARS IN
संबंधित प्रश्न
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
State if the following statement is true or false. Correct the statement if it is false.
Whenever a magnet is not in use, it should be stored along with other magnets.
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
Answer the following in detail.
How can a magnet be demagnetized?
A magnet remains steady in a ________ direction.
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic, north.
What is a natural magnet?
Give scientific reason:
Soft iron is used to make electromagnets.
How can you identify non-magnetic materials? Give an example of a nonmagnetic material.
Match the following:
| 1. | Electricity and magnetism | a. | Step-down transformer |
| 2. | Force on the conductor | b. | Hans Christian Oersted |
| 3. | Electric bell | c. | I LB |
| 4. | Ns <Np | d. | Electromagnet |
