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प्रश्न
State if the following statement is true or false. Correct the statement if it is false.
If a bar magnet is cut in two pieces, then one piece will have only the north pole and the other will have only the south pole.
पर्याय
True
False
उत्तर
False.
If a bar magnet is cut in two pieces, then each of the pieces will have the north pole and the south pole.
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संबंधित प्रश्न
Suggest one way to recognize the magnetic field of the earth.
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]
State two evidences of the existence of earth's magnetic field.
Two like magnetic poles:
A work of 25 J and 30 J is done when 5 C charge is moved first to point A and then to point B from infinity. Calculate the potential difference between points A and B.
A charge of 25 C is moved from infinity to points A and B in an electric field when the work is done to do so is 10 J and 10.5 J respectively. Calculate the potential difference between points A and B.
Define the geographical meridian.
Give short account of the earth’s magnetic field.
Earth acts as a huge bar magnet. Why? Give reasons.
Though Earth is acting as a huge bar magnet it is not attracting other ferromagnetic materials. Why? Give reasons.
