How does a fuel cell create an electric charge?

Question

Quizplus · Accepted Answer

Fuel cells generate electricity through an electrochemical reaction, not by combustion. In a hydrogen fuel cell, for example, hydrogen molecules (H2) are separated into protons and electrons. The electrons are stripped away and flow through an external circuit as electric current before recombining with the protons and oxygen to form water. This process of stripping electrons from hydrogen molecules to create an electric charge is fundamental to how fuel cells work.

How Does a Fuel Cell Create an Electric Charge