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प्रश्न
What is a magnetic compass ? State its use.
उत्तर
Magnetic compass is a device that is used to locate the direction of a place. It always rests in a North-South direction. It is used in the navigators in ships, submarines, aeroplanes, etc.
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संबंधित प्रश्न
Draw diagrams of the artificial magnets of four different shapes?
Define the following term regarding a bar magnet:
Magnetic axis
Fill in the blank.
The perpendicular bisector of the line joining the two poles of a magnet is called ...................
If a magnet attracts a piece of metal, that piece must be made of ______.
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 |
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.
Mark on the diagram the poles of the second magnet,
What are magnetic keepers? What are they used for?
What will happen when we place magnets near cell phones, computers, and DVDs?
