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प्रश्न
Draw magnetic field lines around a bar magnet.
उत्तर
Magnetic field lines of a bar magnet emerge from the north pole and terminate at the south pole. Inside the magnet, the field lines emerge from the south pole and terminate at the north pole, as shown in the given figure.
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संबंधित प्रश्न
List three sources of magnetic fields.
A magnet attracts:
A plotting compass is placed near the south pole of a bar magnet. The pointer of plotting compass will:
The diagram shows a bar magnet surrounded by four plotting compasses. Copy the diagram and mark in it the direction of he compass needle for each of the cases B, C, and D.
Which is the north pole, X or Y?
The three diagrams in the following figure show the lines of force (field lines) between the poles of two magnets. Identify the poles A, B, C, D, E and F.
Why does a freely suspended magnet always rest in a north-south direction?
List two methods of producing magnetic fields.
A magnetic field can pass through ______ and ______.
The unit of magnetic flux density is ______.
By which instrument, the presence of a magnetic field be determined?
Choose the incorrect statement from the following regarding magnetic lines of field
A magnetic field exerts no force on ______.
The magnetic field inside a ______ is uniform.
The ______ produces its own magnetic field, which shields the earth’s ozone layer from the ______ and is important in navigation.
No force acts in a current-carrying conductor when it is ______ to the magnetic field.
A current flowing in a wire gives rise to a magnetic field.
The force on a charged particle moving in a magnetic field is maximum when the angle between the direction of motion and field is 90°.
Assertion (A): The work done by a magnetic field on a moving charge is zero.
Reason (R): In a magnetic field force is perpendicular to the velocity.
