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प्रश्न
You are given two similar bars. One is a magnet and the other is of soft iron. How will you distinguish and identify them ?
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उत्तर
Take first bar and suspend it in a stand with the help of a thread. So that it is free to rotate in horizontal plane. Note the direction in which it sets itself. If the direction is North and South it may be magnet. Again rotate it, if this time again it sets itself in north and south direction, it is a magnet, otherwise it is iron.
Now repeat above experiment with second bar and in the same way find it if it sets always in north and south direction then it will be a magnet.
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संबंधित प्रश्न
Explain the meaning of the term magnetic field ?
What is a magnet?
State if the following statement is true or false. Correct the statement if it is false.
Attraction is the surest test for magnetism.
Define the following term regarding a bar magnet:
Magnetic field
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
Define the following term:
Angle of dip
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.
Observe the pictures A and B given in figure carefully.
Which of the following statement is correct for the above given pictures?
The pole of a freely suspended magnet that points towards the north is called the south pole and what points towards the south is the celled north pole.
