When the electrometer spheres were touched with a charged rod, the electrometer needle deviated. Explain why this happened.

Part of the charge through the metal axis will pass from the rod to the arrow, as a result of which the arrow will start to repel from the rod and deviate by a certain angle.

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.