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प्रश्न
Describe an experiment to illustrate that like poles repel while the, unlike poles, attract.
उत्तर
- Take two bar magnets A and B. Suspend one magnet A with a silk thread from support so that it is free to swing. The magnet will come to rest in the north-south direction. The north pole of the magnet is in the north direction and the south pole of the magnet is in the south direction.
- Now holding the other magnet B in your hand, bring its north pole near the north pole of the suspended magnet A (such that the two magnets do not touch each other) as shown in the figure. You will observe that the suspended magnet A moves away from the magnet B. This shows that the like poles repel each other.
Now bring the south pole of the magnet B near the north pole of the suspended magnet A as shown in the figure, without touching it. You will observe that the magnet A moves towards the magnet B. This shows that the unlike poles attract each other.
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संबंधित प्रश्न
Fill in the blank.
A magnet has ............. poles.
Fill in the blank.
A freely suspended magnet always comes to rest in the ................. direction.
A charge of 75 C is brought from infinity to a given point in an electric field, when amount of work done is 3.75 J. Calculate the electrical potential at that point.
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.
Select the correct option:
SI unit potential difference is:
Define the magnetic field.
Define the geographical meridian.
Define the declination.
Define the terms magnetic declination and dip with reference to a freely suspended magnet.
A freely suspended bar magnet is always pointing along the ________ north-south direction.
