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प्रश्न
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
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उत्तर
Permanent magnet can be used to stop the continuous shuttering of the window in the wind.
संबंधित प्रश्न
You are given a magnet. How will you use it to find north-south direction at a place?
What is declination ? Draw a diagram to show the angle between the declination and true direction of geographic north.
State three important uses of a magnet.
State if the following statement is true or false. Correct the statement if it is false.
Whenever a magnet is not in use, it should be stored along with other magnets.
Answer the following in detail.
How is the single-touch method of magnetism different from the double-touch method?
There are two knitting needles. One of them is magnetized. How will you find out which one is magnetized, if no other magnet is available?
Describe, how you will proceed to determine the position of the pole of a bar magnet.
Define the following term:
Angle of declination
Define the following term:
Angle of dip
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 |
