Final answer:
A positive O tube and a positive F tube show that the Material Osillator can conduct both positive and negative charges. Conventional current considers positive charge flow from positive to negative, despite electrons causing current in the opposite direction. Metals are generally conductors of electricity.
Step-by-step explanation:
A positive O tube and a positive F tube indicate that the Material Osillator (MO) is capable of conducting both positive and negative charges. In metallic conductors such as wires, the electric current is primarily due to the flow of electrons, which carry a negative charge.
Historically, the flow of current is considered from a positive to a negative terminal, in line with conventional current flow, a concept dating back to the 1700s. The actual current flow in metallic wires is due to electrons moving from the negative to the positive terminal, which is the opposite direction of the conventional current flow.