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प्रश्न
Which magnet will you use?
You are lost in a forest.
उत्तर
A bar magnet or loadstone can be used to find the direction in the forest. This is because a bar magnet, when suspended freely, always rests in a north-south direction.
संबंधित प्रश्न
How will you test whether a given rod is made of iron or not?
How are the magnets kept safely? What is the role of keepers in storing the magnets?
Answer the following in detail.
How can a magnet be demagnetized?
If a magnet attracts a piece of metal, that piece must be made of ______.
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,
Define the term Magnetic axis
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
An object that is attracted by magnet.
Define electromagnet.
