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प्रश्न
Write a note on the 'magnetic field'.
उत्तर
The magnetic field is defined as the region around a magnet where the magnetic force can be experienced by an object. Magnetic field lines are the geometrical representation of the magnetic field. Following are the characteristics of magnetic field lines:
- Magnetic field lines emanate from the North Pole and terminate at the South Pole of a magnet (outside the magnet).
- The degree of closeness of magnetic field lines represents the relative strength of the magnet.
- No two field lines can intersect each other.
Field lines due to a bar magnet are shown below:
Magnetic field lines due to a bar magnet.
संबंधित प्रश्न
You are given the magnetic field pattern of a magnet. How will you find out from it where the magnetic field is the strongest?
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
Fill in the following blank with suitable words:
The earth's magnetic field is rather like that of a .......... magnet with its .......... pole in the northern hemisphere.
An electron beam enters a magnetic field at right angles to it as shown in the Figure.
The direction of force acting on the electron beam will be:
to the left
to the right
into the page
out of the page
A charged particle enters at right angles into a uniform magnetic field as shown:
What should be the nature of charge on the particle if it begins to move in a direction pointing vertically our of the page due to its interaction with the magnetic field?
State four properties of magnetic field lines.
Complete the following diagram of magnets to show the lines of force.
Magnetic lines of force never ______ each other.
When the conductor is perpendicular to the magnetic field, the force will be the ______, When it is parallel to the magnetic field, the force will be ______.
