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ravivarma
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Can anybody say me why always like poles repel and unlike poles attract but not why like poles attract and unlike poles attract
This is explained by the concept of magnetic fields. Every magnet has a north and south pole, and these poles create magnetic fields. When two magnets are brought close together, their magnetic fields interact with each other. Like poles have the same direction of magnetic field, so when brought close together, they repel each other. On the other hand, unlike poles have opposite directions of magnetic field, so they attract each other.
No, it is not the physical shape of the magnets that causes the attraction and repulsion. It is the presence of magnetic fields that interact with each other. Two magnets can be shaped differently, but as long as they have north and south poles, they will exhibit the same behavior of attraction and repulsion.
Yes, magnets can attract or repel certain types of metals, such as iron, nickel, and cobalt. This is because these metals have magnetic properties and can be magnetized. Other materials, such as wood, plastic, and glass, are not affected by magnets.
The strength of the magnetic fields and the distance between the magnets determine the strength of attraction or repulsion. The closer the magnets are, the stronger the force will be. However, even at a small distance, the force between two magnets can be very weak.
Yes, the strength of magnets can change over time. This is known as demagnetization, which can be caused by exposure to high temperatures or strong magnetic fields. However, with proper handling and storage, magnets can retain their strength for a long period of time.