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प्रश्न
Explain what you understand by magnetic induction. What role does it play in attraction of a piece of iron by a magnet?
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उत्तर
The process in which a piece of magnetic material acquires the magnetic properties temporarily in presence of another magnet near it is called the magnetic induction.
When a piece of iron is placed near or in contact with a magnet, the piece of iron becomes a magnet i.e., it acquires the property of attracting iron filings when they are brought near its ends. Thus, a piece of iron behaves as a magnet as long as it is kept near (or in contact with) a magnet.
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संबंधित प्रश्न
What are the two ways in which you can trace the magnetic field pattern of a bar magnet?
What is a magnetic field? How can the direction of magnetic field lines at a place be determined?
A magnetic field exerts no force on:
an electrical charge moving perpendicular to its direction
an unmagnetised iron bar
a stationary electric charge
a magnet
Explain the mechanism of attraction of iron nails by a magnet when brought near them.
Explain why iron filings which are sprinkled on a sheet of cardboard placed over a bar magnet take up a definite pattern when cardboard is slightly tapped.
The intensity of a magnetic field is indicated by the lines of ______.
Define the Isogonic line.
Can two magnetic lines of force intersect? Justify your answer:
State the inference drawn about the direction of the magnetic field lines on the basis of the following diagrams.
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| Figure 'a' | Figure 'b' |
