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प्रश्न
Define the following term:
Geographic meridian
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उत्तर
Geographic Meridian: It is the vertical plane containing the geographic north and south poles of the earth and passing through the given place on the surface of earth.
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संबंधित प्रश्न
What is declination ? Draw a diagram to show the angle between the declination and true direction of geographic north.
Answer the following in short.
If a bar magnet is placed over iron filings, where will the attraction of the iron fillings be
- maximum?
- minimum?
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
Write the answer in your word.
Write the properties of a magnet.
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
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 |
Give scientific reason:
Two steel needles hanging from the lower end of a vertical bar magnet do not hang vertically.
State the laws of magnetism.
List out the uses of magnets.
Give the uses of magnets in everyday life.
