What are Methods of Demagnetization

Methods of Demagnetization

 

There are three methods for demagnetizing magnets.

 

  1. Hammering:

Magnets can be partially demagnetized by hammering them when they’ are painting in the east or west direction.

 

  1. Heating:

Magnets loose their magnetism when they are heated strongly.

 

  1. Electrical Method:

 

The most efficient method of demagnetizing a magnet is to use n alternating current. Take a solenoid and place it in the east west direction. Pass an alternating current (about 12 V) through it. Now, put the magnet in the solenoid from one end and pull it out from the other. While the current is still flowing. The magnet will loose its magnetism.

 

Alternating current reverses its direction at a rate of 100 times per second and hence causes the magnetism of the material to reverse the polarity at the same rate. Due to 54 this rapid reverse in the polarity, the magnet looses its magnetism

 

Note: To begin to study in the chosen educational institution on the correspondence form, it is first necessary to pass examinations of the school program, and only then to start to look for a university. When you decide on the university, you should collect the documents and take them to the admissions office. We have already told you about how the collection and submission of documents for admission to the university is carried out. Once you submit the documents, you can assume that half the battle has already been done. To be accurately enrolled in a university or an institution, you must also take exams. These exams, unlike the full-time form, are conditional. Therefore, it will not be difficult for you to do. That’s why many students are eager to enroll in correspondence education. So it is quite obvious that the correspondence form of training for today has not lost its relevance, and has a number of significant advantages and is acceptable for many entrants. Finished specialists are also in demand at specialized enterprises, and the level of their training is not worse than that of graduates of full-time education. So, having weighed its forces and capabilities, we can start boldly “gnawing the granite of science”.

Share with your *FRIENDS*
Newsletter

Get the Latest Info & Stuff!

Get Latest Guess Papers, Notes and Novels through Email


Click Here to Leave a Comment Below 0 comments

Leave a Reply: