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प्रश्न
What is a lodestone?
एक पंक्ति में उत्तर
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उत्तर
The natural magnet which was used for the navigation by the mariners is called a lodestone.
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संबंधित प्रश्न
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Answer the following in detail.
How is the single-touch method of magnetism different from the double-touch method?
If a bar magnet is cut into equal pieces by cutting it at right angles to its axis at two places, ______ bar magnets are formed, and a total of _____ poles are formed.
Select the correct option:
The substance which form a strong temporary magnet is:
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic, north.
You are given two similar bars; one is a soft iron and the other is a magnet. How will you distinguish between them without using any other magnet or bar?
What are the magnetic poles? Where are they situated?
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.
Define artificial magnet.
Define electromagnet.
