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प्रश्न
Which substances are used for making electromagnets?
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उत्तर
To make an electromagnet, we require the following:
- A long conducting copper wire
- An iron nail on which the copper wire has to be wound
- A switch
- A battery
संबंधित प्रश्न
What are the two ways in which you can trace the magnetic field pattern of a bar magnet?
You are given the magnetic field pattern of a magnet. How will you find out from it where the magnetic field is the strongest?
Fill in the following blank with suitable words:
The lines of ........... round a straight current-carrying conductor are in the shape of ...........
What is an artificial magnet? State two reasons why do we need artificial magnets .
Can two magnetic field lines intersect each other? Give reason to your answer.
Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.
What is the magnitude of the magnetic field at each neutral point? Give a reason for your answer.
Select the correct option:
The magnetic strength of a bar magnet is:
Define the Isogonic line.
The relation between weber and Tesla is ______.
