Question

Q4. Give detailed information about how the merchants of olden times used a
magnet while travelling.
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Answer 1

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Give detailed information about how the merchants of olden times used a  magnet while travelling.

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❖ The merchants of olden times used to carry compass for ascertaining  Directions while travelling.

❖ In a compass, a magnetic needle is fitted. This magnetic needle  supported on a sharp point can freely rotate in horizontal plane

❖ If a traveller goes anywhere while travelling, due to the property  of a magnet, magnetic needle always get settled in the north-south  direction.

❖ Once, the north direction is known, other directions can be easily  known.

❖ At the oceans where only water is seen everywhere or at the desert  areas where only sand is seen everywhere, it becomes difficult to  know the direction at night.

❖ At that time, the compass used to be helpful for merchants to know  the directions.

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☯ Single Touch Method -

The magnetic strength of the magnet  created using this method is low. The magnetism of the magnet  created using this method lasts for a  shorter time.

☯ Double Touch Method -

The magnetic strength of the  magnet created using this method is  high as compared to single touch  method. The magnetism of the magnet  created using this method lasts for  a longer time as compared to single  touch method.

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Hope it helps :)

Answer 2

Answer:

magnet shows the direction at all times , as it rotates in accordance with the earth's magnetic field. so in search of new markets they would have used these magnets to show them the direction.