Question

Может ли одно и то же тело, например стекленная палочка, при трении электризоваться то положительно то отрицательно ?

Answer 1

Я считаю, что да. Тк тела могут обмениваться зарядами, но некоторые тела притягивают к себе ТОЛЬКО положительный или отрицательный заряд.
Вроде так

Answer 2

Все зависит от того с каким другим телом оно взаимодействует в момент трения. Если это тело способно забрать часть электронов у стеклянная палочки, то палочка зарядится положительно, а тело отрицательно

Answer 3

Can an object, such as a glass rod, become positively or negatively charged when rubbed?

When an object, such as a glass rod, is rubbed, it can become charged either positively or negatively. This phenomenon is known as triboelectric charging, where certain materials become electrically charged after they come into contact through friction. The type of charge acquired depends on the specific materials involved in the contact and the transfer of electrons between them.

The triboelectric series is a list of materials showing the tendency to become positively or negatively charged when they come into contact through friction. The position of a material in the triboelectric series determines its tendency to become positively or negatively charged when it comes into contact with another material. For example, glass is known to acquire a positive charge when rubbed with certain materials, while it can acquire a negative charge when rubbed with others.

In summary, when a glass rod is rubbed, it can become positively or negatively charged depending on the specific material it comes into contact with and the transfer of electrons during the rubbing process.