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प्रश्न
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
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उत्तर
The magnetisation of steel needle using electric current: Wind a length of copper wire around a steel needle and connect it to battery and switch. After the current is passed through the copper wire for some time, we will notice that the steel needle got magnetised.
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संबंधित प्रश्न
Answer the following in detail.
How can a magnet be demagnetized?
Define the following term regarding a bar magnet:
Effective length
Define the following term regarding a bar magnet:
Magnetic equator
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
What is the material of darkened part?
Since every iron atom is a tiny magnet, why are not all iron bar magnets?
What do you understand by the term magnetic declination?
Explain the following:
Resistance of a conductor
One of the following is an example for a permanent magnet.
List out the uses of magnets.
