Advertisements
Advertisements
प्रश्न
Define the term magnetic field of a magnet. How will you recognize it experimentally?
Advertisements
उत्तर
The space around a magnet in which if a magnetic substance such as small pieces of iron are placed, they get attracted to the magnet, which is called the magnetic field.
Recognition of the magnetic field around a magnet: If a magnet is placed below a sheet of stiff paper and some iron filings are spread on it, then on tapping the sheet gently, the iron filings are found to arrange themselves in a definite pattern as shown in fig.

APPEARS IN
संबंधित प्रश्न
Where do the manufactures use a magnetic strip in the refrigerator? Why is this magnetic strip used?
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.
Describe an experiment to show that the maximum attractive property is at the poles of a magnet?
Tick the most appropriate answer.
The region around a magnet where its magnetic force can be experienced is called
The change in magnetic field lines in a coil is the cause of induced electric current in it. Name the underlying phenomenon.
Give detailed information about how the merchants of olden times used a magnet while travelling.
The magnetic field inside a ______ is uniform.
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.
