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प्रश्न
A small magnet is suspended by a silk thread from a rigid support such that the magnet can freely swing. How will it rest? Draw a diagram to show it.
उत्तर
If a small magnet is suspended by a silk thread such that it can swing freely then it rests itself in the geographic north-south direction.
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संबंधित प्रश्न
Suggest one way to recognize the magnetic field of the earth.
Fill in the blank.
The north pole of the imaginary magnet of the earth is near the geographic ................. pole.
You are provided with two similar bars, one is a magnet and the other is a soft iron. How will you distinguish between them without the use of any other magnet or bar?
[Hint : A magnet when suspended freely will rest only in the north-south direction, but the soft iron bar will rest in any direction]
A small iron bar is kept near the north pole of a bar magnet. How does the iron bar acquire magnetism? Draw a diagram to show the polarity on the iron bar. What will happen if the magnet is removed?
State two evidences of the existence of earth's magnetic field.
Two like magnetic poles:
Define the terms magnetic declination and dip with reference to a freely suspended magnet.
Write a note on Earth’s magnetism.
Though Earth is acting as a huge bar magnet it is not attracting other ferromagnetic materials. Why? Give reasons.
What is meant by the magnetic axis?
