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प्रश्न
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
पर्याय
True
False
उत्तर
This statement is False.
Correct statement:
Maximum iron filings stick in the poles of a bar magnet when it is brought near them.
संबंधित प्रश्न
Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
Select the correct alternative
A freely suspended magnet rests in
Name four appliances which work using electricity ?
Match the following
| Column A | Column B |
| A) Steel | 1) to store magnets |
| B) Soft iron | 2) temporary magnet |
| C) Use in electric bell | 3) permanent magnet |
| D) Magnetic keepers | 4) electromagnet |
Select the correct answer
An example of natural magnet is
Tick the most appropriate answer.
The surest test of magnetism is
State if the following statement is true or false. Correct the statement if it is false.
As we move away from a magnet, its attraction power weakens.
If a magnet attracts a piece of metal, that piece must be made of ______.
Write the answer in your word.
Write the properties of a magnet.
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?
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Name the metal used for E and F.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
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,
The figure shows a freely suspended magnet in the rest position. Copy the diagram and on its show:
- Angle of declination
- Angle in dip
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.
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.
Distinguish between
Natural and artificial magnets.
