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प्रश्न
Select the correct option:
The magnetic strength of a bar magnet is:
विकल्प
maximum at its center
same along the magnet
maximum near its ends
none of these
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उत्तर
maximum near its ends
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संबंधित प्रश्न
A strong bar magnet is placed vertically above a horizontal wooden board. The magnetic lines of force will be:
(a) only in horizontal plane around the magnet
(b) only in vertical plane around the magnet
(c) in horizontal as well as in vertical planes around the magnet
(d) in all the planes around the magnet
The magnetic field inside a long straight solenoid carrying current ______.
In the straight wire A, current is flowing in the vertically downwards direction whereas in wire B the current is flowing in the vertically upward direction. What is the direction of magnetic field:
(a) in wire A?
(b) in wire B?
Name the rule which you have used to get the answer.
If you hold a coil of wire next to a magnet, no current will flow in the coil. What else is needed to induce a current?
Can two magnetic field lines intersect each other? Give reason to your answer.
The direction of the magnetic lines around a current-carrying conductor can be easily understood using the ______ rule.
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 ______.
Name the poles P, Q, Rand S of the magnets in the following figures 'a' and 'b':
 |
 |
| Figure 'a' | Figure 'b' |
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.
