A substance whose permeability is less than the permeability of free s...
A diamagnetic material creates a magnetic field opposing that of the external magnetic field and it repels the external magnetic field. Hence its permeability is less than that of free space.
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A substance whose permeability is less than the permeability of free s...
Permeability of a substance is defined as its ability to allow magnetic lines of force to pass through it. The permeability of free space (vacuum) is considered as a reference point and is denoted by the symbol μ₀. Any substance whose permeability is less than the permeability of free space is considered as a diamagnetic substance.
Explanation:
Diamagnetic substances are those substances which have a tendency to move away from a magnetic field. They have all their electrons paired up, and hence, they do not have a net magnetic moment. When placed in a magnetic field, the magnetic field induces a magnetic moment in the opposite direction, causing the substance to move away from the magnetic field.
The permeability of diamagnetic substances is less than the permeability of free space (μ<μ₀). this="" is="" because="" diamagnetic="" substances="" do="" not="" favor="" the="" formation="" of="" magnetic="" domains="" and="" do="" not="" retain="" any="" magnetic="" field="" once="" the="" applied="" field="" is="">μ₀).>
Examples of diamagnetic substances include copper, silver, gold, bismuth, and graphite.
Conclusion:
In conclusion, a substance whose permeability is less than the permeability of free space is a diamagnetic substance. These substances move away from magnetic fields and have a permeability less than the reference point of free space.