What are Ferromagnetic Substances
A substance which behaves like a magnet in the presence of a strong magnetic field is called a ferromagnetic substance.
- Hard Ferromagnetic Substances:
The ferromagnetic substances which retain their magnetism when removed from the magnetic field are known as hard ferromagnetic substances. Example is steel.
- Soft Ferronmgnetic Substance:
The ferromagnetic substances which become magnets in the presence of a magnetic field and lose their magnetism when removed from the magnetic field are known as soft ferromagnetic substance. Example is soft iron.
Note: Even in the Soviet years, those who simply could not enter the full-time form became part-time students. It was believed that they did not have enough knowledge for this. Today, everything has changed radically. Applicants initially choose for themselves a correspondence education in order to combine work and study. This is the main motivation for choosing this form of education. But what is the essence of this choice? The fact is that this form of training allows you to gain knowledge and higher education “without disruption of production,” so to speak. This is very convenient, because there is a unique opportunity to earn money independently and pay for their education, taking the path of adult and independent life. Yes, and additional leave, separately paid by the enterprise, it did not harm anyone.