Demagnetised meaning

Demagnetised means to have a magnetic field removed from an object.


Demagnetised definitions

Word backwards desitengamed
Part of speech The word "demagnetised" is a verb.
Syllabic division de-mag-net-ised
Plural The plural of demagnetised is demagnetised.
Total letters 12
Vogais (3) e,a,i
Consonants (6) d,m,g,n,t,s

When a magnet loses its magnetic properties, it is said to be demagnetised. This can happen due to various reasons such as high temperatures, strong external magnetic fields, or physical damage. Understanding how demagnetisation occurs is essential in many industries that rely on magnets for various applications.

Causes of Demagnetisation

One of the common causes of demagnetisation is exposing a magnet to high temperatures. When a magnet is heated above its Curie temperature, which is specific to each type of magnet, it can lose its magnetic properties. Another cause is subjecting a magnet to a strong external magnetic field, which can realign the magnetic domains in the opposite direction, cancelling out the magnetic field.

Effects of Demagnetisation

When a magnet gets demagnetised, it loses its ability to attract other magnetic materials. This can be problematic in various applications such as magnetic separators, electric motors, or medical devices. Demagnetisation can lead to a decrease in performance or complete failure of a device that relies on magnetism for its operation.

Prevention and Remedies

To prevent demagnetisation, it is essential to handle magnets with care and avoid exposing them to high temperatures or strong magnetic fields. Additionally, using demagnetisation equipment such as demagnetising coils can help restore magnets to their original state by subjecting them to a controlled demagnetisation process.

In conclusion, understanding demagnetisation and its causes is crucial for industries and individuals who rely on magnets for various applications. By taking preventive measures and using appropriate remedies, the effects of demagnetisation can be mitigated, ensuring the efficient operation of magnetic devices.


Demagnetised Examples

  1. The credit card was demagnetised after being left next to a strong magnet.
  2. The data on the hard drive became corrupted when it was demagnetised.
  3. The hotel key card stopped working because it was demagnetised in the guest's pocket.
  4. The magnetic strip on the train ticket was demagnetised, causing it to be unreadable at the turnstile.
  5. The old VHS tapes lost their recordings because they were demagnetised over time.
  6. The compass needle became inaccurate after being demagnetised by a nearby electrical device.
  7. The MRI machine had to be recalibrated after being demagnetised during maintenance.
  8. The magnetic tools in the workshop were demagnetised to prevent them from attracting metal debris.
  9. The security tags on clothing can be easily demagnetised by rubbing a strong magnet over them.
  10. The tape measure had to be replaced after it was demagnetised and no longer stuck to metal surfaces.


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  • Updated 08/07/2024 - 18:38:26