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प्रश्न
Name four appliances which work using electricity ?
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उत्तर
- an electric iron
- an electric heater
- an electric kattle
- an immersion rod
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संबंधित प्रश्न
Write true or false of the following statement.
Magnetic poles occur in pairs.
What is a magnet?
State three important uses of a magnet.
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
State if the following statement is true or false. Correct the statement if it is false.
Attraction is the surest test for magnetism.
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
If a bar magnet is hung by a thread tied at its center, its north pole becomes steady in the direction of the ______ Pole of the earth.
A magnet remains steady in a ________ direction.
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,
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 |
