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प्रश्न
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Mark on the diagram the poles of the second magnet,
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उत्तर
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संबंधित प्रश्न
State three important uses of a magnet.
What is the magnetic induction? Explain with the help of a diagram.
If a bar magnet is hung by a thread tied at its center, its north pole becomes steady in the direction of the ______ Pole of the earth.
Fill the blank spaces in the table given below:
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | ________ |
| ________ | attracted | attracted |
| North pole of a bar magnet | ________ | _________ |
| ________ | attracted | repelled |
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
State three important properties of a magnet.
Define the following term:
Geographic meridian
One of the following is an example for a permanent magnet.
MRI stands for _______.
What will happen when we place magnets near cell phones, computers, and DVDs?
