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प्रश्न
Write true or false of the following statement.
Copper cannot be magnetised.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Describe a simple experiment to illustrate that like poles of two magnets repel each other while the unlike poles attract ?
Answer the following in detail.
How is the single-touch method of magnetism different from the double-touch method?
Answer the following in detail.
How can a magnet be demagnetized?
Since every iron atom is a tiny magnet, why are not all iron bar magnets?
What are magnetic keepers? What are they used for?
Define the term Magnetic axis
Explain the following:
Resistance of a conductor
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.
Why it is not advisable to slide a magnet on an iron bar back and forth during magnetising it?
Match the following:
| 1. | Electricity and magnetism | a. | Step-down transformer |
| 2. | Force on the conductor | b. | Hans Christian Oersted |
| 3. | Electric bell | c. | I LB |
| 4. | Ns <Np | d. | Electromagnet |
