Advertisements
Advertisements
प्रश्न
The susceptibility of a magnetic material is 0·9853. Identify the type of magnetic material. Draw the modification of the field pattern on keeping a piece of this material in a uniform magnetic field.
Advertisements
उत्तर
As we know that susceptibility of a paramagnetic substance is positive but small. Hence, the given magnetic material is paramagnetic in nature.
When a specimen of a paramagnetic substance is placed in a magnetising field, the magnetic field lines prefer to pass through the specimen rather than through air. Thus, magnetic induction B inside the sample is more than the magnetic induction B0 outside the sample.
APPEARS IN
संबंधित प्रश्न
Give any ‘two’ points of differences between diamagnetic and ferromagnetic substances.
Which of the following substances are diamagnetic?
Bi, Al, Na, Cu, Ca and Ni
The susceptibility of a magnetic material is − 2.6 × 10−5. Identify the type of magnetic material and state its two properties.
Choose the correct option:
A magnetising field of 360 Am−1 produces a magnetic flux density (B) = 0.6T in a ferromagnetic material. What is its permeability in Tm A−1?
The materials having negative magnetic susceptibility are ____________.
A domain in a ferromagnetic substance is in the form of a cube of side length 1 µm. If it contains 6 x 1010 atoms and each atomic dipole has a dipole moment of 7 x 10-24 Am2, then magnetization of the domain is ____________.
Why is diamagnetism, in contrast, almost independent of temperature?
If a charged particle at rest experience no electromagnetic force
Essential difference between electrostatic shielding by a conducting shell and magnetostatic shielding is due to ______.
- electrostatic field lines can end on charges and conductors have free charges.
- lines of B can also end but conductors cannot end them.
- lines of B cannot end on any material and perfect shielding is not possible.
- shells of high permeability materials can be used to divert lines of B from the interior region.
Explain ferromagnetism on the basis of the domain theory.
