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प्रश्न
Define the term Effective length of a magnet
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उत्तर
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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 ?
Distinguish between the two methods of making artificial magnets.
Draw the magnetic flux pattern near a bar magnet placed with its axis in the magnetic meridian and the south pole pointing towards geographic north.
What are magnetic keepers? What are they used for?
What do you understand by the term magnetic declination?
Define the term Poles of a magnet
State three important properties of a 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.
How can you identify non-magnetic materials? Give an example of a nonmagnetic material.
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 |
