Cathode

The video explains the role of the cathode in different systems. In devices that consume power, the cathode is negative, while in those that provide power, it is positive. In electrolysis, the cathode is a negatively charged electrode connected to the negative terminal of an electric supply, attracting positive ions that gain electrons.

What is the role of the cathode in a device that consumes power?

How does the charge of the cathode differ in devices that provide power compared to those that consume power?

In the context of electrolysis, what does the cathode attract?

Explain the connection of the cathode to the electric supply in electrolysis.

What happens to positive ions at the cathode during electrolysis?