Which switching on of the diode is called direct, which is reverse?

Connecting a diode, in which a p-type semiconductor is connected to the positive pole of the source, and an n-type semiconductor to the negative is called a direct connection. If you change the polarity of the source connection, then in this case the connection is called reverse.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.