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mkbh_10
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Why is only electric field considered when we discuss the phenomenon of polarisation ? What about the magnetic field ?
A magnetic field is a region in space where a magnetic force can be observed. It is created by moving electric charges and can be visualized as lines of force that form closed loops around a magnetic object.
Polarisation in magnetic fields refers to the alignment of magnetic dipoles within a material. This can occur when a material is placed in a magnetic field and the individual dipoles align with the direction of the field, resulting in a net magnetic moment.
Polarisation in a magnetic field can be measured using a magnetometer, which detects the strength and direction of a magnetic field. The magnetometer can also measure changes in the magnetic field over time, allowing for the characterization of polarisation.
Polarisation in magnetic fields has many practical applications, such as in magnetic data storage and magnetic sensing devices. It is also essential in industries such as electronics, telecommunications, and medical imaging.
Changes in magnetic fields can alter the polarisation of materials. For example, when a material is placed in a rapidly changing magnetic field, the dipoles may not have enough time to align with the new direction, resulting in a decrease in polarisation. Additionally, changes in temperature and material composition can also affect polarisation in magnetic fields.