Advertisements
Advertisements
प्रश्न
Which of the following substances are diamagnetic?
Bi, Al, Na, Cu, Ca and Ni
Advertisements
उत्तर
Diamagnetic are those substances which when placed in a magnetic field are feebly magnetized in a direction opposite to that of the magnetizing field. Among the given elements Bi and Cu are diamagnetic substances.
APPEARS IN
संबंधित प्रश्न
Draw magnetic field line when a (i) diamagnetic, (ii) paramagnetic substance is placed in an external magnetic field. Which magnetic property distinguishes this behaviour of the field line due to the substances?
Magnetization of the sample is ______.
If a toroid uses bismuth for its core, will the field in the core be (slightly) greater or (slightly) less than when the core is empty?
Explain qualitatively on the basis of domain picture the irreversibility in the magnetisation curve of a ferromagnet.
A paramagnetic sample shows a net magnetisation of 8 Am–1 when placed in an external magnetic field of 0.6 T at a temperature of 4 K. When the same sample is placed in an external magnetic field of 0.2 T at a temperature of 16 K, the magnetisation will be ______.
S is the surface of a lump of magnetic material.
- Lines of B are necessarily continuous across S.
- Some lines of B must be discontinuous across S.
- Lines of H are necessarily continuous across S.
- Lines of H cannot all be continuous across S.
Which of the following has a permeability less than that of free space?
Explain the meaning of the following statement:
Curie temperature for soft iron is 770°C.
