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Question
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
Solution
Permanent magnet can be used to stop the continuous shuttering of the window in the wind.
RELATED QUESTIONS
Fill in the blank
Like poles ______ each other and unlike poles _____
You are given a magnet. How will you use it to find north-south direction at a place?
Describe a simple experiment to illustrate that like poles of two magnets repel each other while the unlike poles attract ?
Tick the most appropriate answer.
The surest test of magnetism is
Distinguish between the two methods of making artificial magnets.
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 |
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic south.
Since every iron atom is a tiny magnet, why are not all iron bar magnets?
Distinguish between
Natural and artificial magnets.
