Cátodo

The video explains the role of the cathode in different devices. In power-consuming devices, the cathode is negative, while in energy-providing devices, it is positive. During electrolysis, the cathode is negatively charged and connected to the negative terminal of a power supply, attracting cations that gain electrons.

In a device that uses power, what is the charge of the cathode?

• Variable

• Neutral

• Negative

• Positive

What is the charge of the cathode in a device that supplies energy?

• Neutral

• Positive

• Negative

• Variable

During electrolysis, to which terminal is the cathode connected?

• Neutral terminal

• Ground terminal

• Negative terminal

• Positive terminal

What type of charge does the cathode have in electrolysis?

• Variable

• Neutral

• Negative

• Positive

What happens to cations at the cathode?

• They remain unchanged

• They gain electrons

• They lose electrons

• They become neutral