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Class 8 Tuition > Learn Class VI-VIII Tuition > 1. Name a natural magnet. What are the disadvantages...
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1. Name a natural magnet. What are the disadvantages of using this magnet as compared to an artificial magnet? 2. How would you identify the poles of a magnet if they are not marked.

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And no 1 they don' t have much magnetic strength as compared to artificial magnets. And 2 they are in irregular shapes
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Take a magnetic compass.we know its north pole and south pole.now bring one end of a magnet to the north pole of magnetic compass ,if they repel each other , that is north pole.but if they attract .that is south pole
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disadvantage is less magnetic effect, poles are identify in such a way that same charge repel each other an d different charges attract each other.
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1.Loadstone is one natural magnet. Natural magnet can not be made stronger and secondly they can not be turned into desired shape. 2.Bring a magnetic compass near to the magnet but not touching it.The magnet will change the orientation.The end of the magnet which points to north pole of earth is the...
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1.Loadstone is one natural magnet. Natural magnet can not be made stronger and secondly they can not be turned into desired shape. 2.Bring a magnetic compass near to the magnet but not touching it.The magnet will change the orientation.The end of the magnet which points to north pole of earth is the South pole and other one is north. read less
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1. Lodestone. Disadvantages: Limited number of uses as they can't be present according to our requirements. Their strength can't be increased or decreased as per requirement. They can't be switched on or off when required. 2. Take a magnetic compass and place it close to but not touching your magnet....
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1. Lodestone. Disadvantages: Limited number of uses as they can't be present according to our requirements. Their strength can't be increased or decreased as per requirement. They can't be switched on or off when required. 2. Take a magnetic compass and place it close to but not touching your magnet. Watch carefully at where the compass needle points. The point that normally points to the north pole of Earth should point to one end of the magnet. That end is actually the South pole of the magnet. read less
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1. Lodestones. As they are irregular in shape, they do not behave as expected in a uniform magnetic field. 2. Suspend it with a string. The pole pointing towards north is the north pole.
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Hang up the magnet by a cotton thread so that it hangs freely. When it comes to rest, we notice that the magnet is lying in a North - South direction.
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Computer Geek

Ans 1. Lodestone is a natural magnet which can attract Iron
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Computer Geek

Ans 2.Suspend the bar magnet freely using a thread. The magnet will point in Geographical North South direction. The end pointing towards Geographical North is the North Pole of the magnet and the end pointing towards Geographical South is the South Pole of the magnet.
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Computer Geek

Disadvantage of using bar magnet is that its strength decreases as time spends due to wear and tear.Also they are not found in fixed shape.
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