If you rub the ebony stick on the fur, then it (the stick) will receive a negative charge because the charged electrons on the stick will transfer to the fur. And on the fur, in turn, there will be a positive charge. Positive and negative charges in physics are denoted as follows:
1) -q – negative charge;
2) + q is a positive charge.
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.