When substance is placed in a magnetic
field, its ability to get magnetized
depends upon its
a) permeability
b) susceptibility
s magnetic viscocity
a) none of these
Answers
Answer: When a substance is exposed to a magnetic field, its susceptibility determines how magnetised it will become.
Explanation:
A material's magnetic state (or phase) is influenced by its environment's temperature, pressure, and magnetic field. As these factors alter, a material might display multiple forms of magnetism. Though the precise mathematical relationship between strength and distance varies, the intensity of a magnetic field almost always decreases with distance. Magnetic fields can become complex due to various arrangements of magnetic moments and electric currents.
1. Permeability: Permeability is the amount of magnetization that a material acquires in electromagnetism in response to an applied magnetic field. Greek letter μ is commonly used to denote permeability.
2. Susceptibility: A material's magnetic susceptibility reveals whether it is drawn into or repelled by a magnetic field. Materials that are paramagnetic align with the applied field and are drawn to areas with stronger magnetic fields.The magnetization of the material adds its own magnetic field on top of the applied field, which causes the field lines to concentrate in paramagnetism or be excluded in diamagnetism.
3. Magnetic viscocity: The gradual demagnetization of magnetically charged objects is characterised by magnetic viscosity, also known as the magnetic after-effect. A superposition of exponential time dependences with a wide range of relaxation times can explain the magnetization's logarithmic time dependence in many circumstances.
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