Plate current is the flow of electrons from the cathode to the anode (plate) in a vacuum tube, driven by the voltage applied between these electrodes. This current is crucial for the amplification and switching functions of vacuum tubes in electronic circuits, as it directly influences the tube's output characteristics.

Plate Current

Plate current

flow of electrons

A cathode is the electrode through which electric current flows out of a polarized electrical device. In electrochemical cells, it is the site of reduction reactions, attracting cations or positive charges from the electrolyte.

cathode

The anode is the electrode where oxidation occurs in an electrochemical cell, and it is crucial for the flow of electrons in the circuit. In galvanic cells, it is the negative terminal, while in electrolytic cells, it is the positive terminal, demonstrating its role in different types of electrochemical reactions.

anode

voltage applied

Vacuum tubes are electronic devices that control electric current flow in a high vacuum between electrodes to amplify, switch, or modify a signal. They played a crucial role in the development of early electronics, including radios, televisions, and computers, before being largely replaced by semiconductor devices like transistors.

vacuum tube

Amplification functions

switching functions

Electronic circuits are the fundamental building blocks of modern electronic devices, enabling the manipulation and control of electrical signals to perform a wide range of functions. They consist of interconnected components such as resistors, capacitors, inductors, diodes, and transistors, each serving a specific role in the circuit's operation.

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