
State whether True or False:
Like poles repel each other and unlike poles attract each other.
A.)True
B.)False
Answer
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Hint: When like poles are brought together, all the electrons start spinning in the same direction. And when unlike poles are brought together, all the electrons start spinning in the opposite direction. Thus, like poles repel and unlike poles attract each other.
Complete answer:
Electrons in the atoms of any magnetic material spin around the nucleus mainly in one direction. Due to this more negative side and more positive side is formed in the magnet. This makes the north pole and south pole of the magnet. This difference creates a high attraction on one side of the magnet where the electrons are spinning compared to that on the other side where electrons are not spinning.
This magnetic force flows from a more negative side to a more positive side i.e. from north pole to south pole outside the magnet. This results in a magnetic field around the magnet. When we join the north pole and south pole of two different magnets, all the electrons start spinning in the same direction. This leads to a strong attraction. On the other hand, when we join north pole to north pole or south pole to south pole electrons are likely to reverse their direction in which they were spinning. This causes repulsion.
Thus, we can say, when like poles are brought together, they repel each other and when unlike poles are brought together, they attract.
So, the correct answer is “Option A”.
Note:
Size of the magnet affects its strength. When we increase the size of the magnet, there are proportionally more electrons to align either in the same direction or in reverse direction. This produces a stronger magnetic field as compared to a smaller piece of the same magnet.
Complete answer:
Electrons in the atoms of any magnetic material spin around the nucleus mainly in one direction. Due to this more negative side and more positive side is formed in the magnet. This makes the north pole and south pole of the magnet. This difference creates a high attraction on one side of the magnet where the electrons are spinning compared to that on the other side where electrons are not spinning.
This magnetic force flows from a more negative side to a more positive side i.e. from north pole to south pole outside the magnet. This results in a magnetic field around the magnet. When we join the north pole and south pole of two different magnets, all the electrons start spinning in the same direction. This leads to a strong attraction. On the other hand, when we join north pole to north pole or south pole to south pole electrons are likely to reverse their direction in which they were spinning. This causes repulsion.

Thus, we can say, when like poles are brought together, they repel each other and when unlike poles are brought together, they attract.
So, the correct answer is “Option A”.
Note:
Size of the magnet affects its strength. When we increase the size of the magnet, there are proportionally more electrons to align either in the same direction or in reverse direction. This produces a stronger magnetic field as compared to a smaller piece of the same magnet.
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