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प्रश्न
Select the correct option:
Nickel is a:
पर्याय
ferromagnetic substance
paramagnetic substance
diamagnetic substance
none of these
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उत्तर
ferromagnetic substance
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संबंधित प्रश्न
The figure given below shows the magnetic field between two magnets:
Copy the diagram and label theother poles of the magnets.
Which is the weaker magnet?
A thick wire is hanging form a wooden table. An anticlockwise magnetic field is to be produced around the wire by passing current through this wire by using a battery. Which terminal of the battery should be connected to the:
(a) top end of wire?
(b) bottom end of wire?
Give reason for your choice.
What is an artificial magnet? State two reasons why do we need artificial magnets .
Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.
Insert two magnetic field lines on either side of the magnet using arrow head to show the direction of each field line.
Define the Isogonic line.
Distinguish between
Magnetic properties of iron and steel.
Magnetic field lines determine ______.
______ is the number of magnetic field lines passing through a given area.
A wire 10 cm long carrying a current of 1.5 A is held in a uniform magneÑic field in which B = 10-3 T. Calculate the force on the wire if it is held perpendicular to the lines of the magnetic field.
