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प्रश्न
State the laws of magnetism.
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उत्तर
The Laws of Magnetism: Like poles repel each other and unlike poles attract each other.
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संबंधित प्रश्न
Explain the meaning of the term magnetic field ?
Write true or false of the following statement.
Copper cannot be magnetised.
State if the following statement is true or false. Correct the statement if it is false.
As we move away from a magnet, its attraction power weakens.
Give a reason for the following.
Iron is a magnetic substance.
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic south.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
What is the material of darkened part?
If a magnet is carefully broken into two pieces as shown in figure (i), how does the magnetic strength of each piece compare with that of the original magnet? If another magnet is carefully broken in half along its long axis shown in figure (ii), how would the strength of each piece compare with that of the original magnet?
Consider the statement given below and choose the correct option.
Assertion: Iron filings are concentrated more at the magnetic poles.
Reason: The magnets are so sharp.
