What is the designation of the positive electrode?

The positive electrode in an electrical circuit is designated as the anode. This designation comes from the way electrical current flows in relation to the electrode's charge. In electrolysis and in various electronic devices, the anode is where oxidation occurs, meaning it is the site where electrons flow into the device from the external circuit. This is fundamental in understanding the behavior of electric currents and the function of circuits.

In contrast, the cathode is considered the negative electrode, where reduction takes place, and where electrons are emitted to the external circuit. Understanding this relationship between the anode and cathode is crucial for anyone studying electricity, as it lays the foundation for grasping more complex concepts in electronics and electrochemistry. Relay and insulator are terms used in electrical systems but do not refer specifically to electrodes or their functions.