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प्रश्न
Define the following term:
Geographic meridian
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उत्तर
Geographic Meridian: It is the vertical plane containing the geographic north and south poles of the earth and passing through the given place on the surface of earth.
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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 |
You are given a magnet. How will you use it to find north-south direction at a place?
State four important properties of a bar magnet?
Answer the following in detail.
Write a short note on the theory of magnetism.
Answer the following in detail.
How can a magnet be demagnetized?
Define the following term regarding a bar magnet:
Magnetic axis
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?
Explain the following:
Resistance of a conductor
The magnetic poles always exist in pairs.
