Let a neutral sleeve be suspended, and a negatively charged stick is brought to it. In the sleeve, free electrons, hitting an electrical zero, will move to the side farthest from the stick, after touching the electrons from the stick will go to the sleeve, neutralizing part of the positive charge, as a result, the sleeve will become negatively charged as a whole. If the stick is brought up with a positive charge, then, on the contrary, the electrons from the sleeve will flow to the stick.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.