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प्रश्न
Define the agonic line.
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उत्तर
A line which joins all the places on earth, having zero angle of declination is called agonic line.
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संबंधित प्रश्न
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
Define magnetic field lines. Describe an activity to draw a magnetic field line outside a bar magnet from one pole to another pole.
What is a natural magnet? State two limitations of a natural magnet.
Explain the mechanism of attraction of iron nails by a magnet when brought near them.
Which substances are used for making electromagnets?
How do you account for the following fact?
Soft iron keepers help to prevent the magnets from losing their magnetic properties.
Draw diagram showing the arrangement of the lines of force for a piece of soft iron laid in line with the magnetic field.
Distinguish between
Magnetic properties of iron and steel.
"Magnetic field is a physical quantity that has both direction and magnitude." How can this statement be proved with the help of magnetic field lines of a bar magnet?
Assertion (A): Magnetic field lines never intersect each other.
Reason (R): If they intersect, then at the point of intersection, the compass needle would point towards two directions, which is not possible.
