Question

What is fuel cell?.....

Answer 1

Hey mate,...

A fuel cell is a device that converts chemical potential energy (energy stored in molecular bonds) into electrical energy.

Hope it will help you.

Answer 2

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★$\bold{Feul\: cell-:}$ A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent.

◆Fuel cells are different from batteries in that they require a continuous source of fuel and oxygen or air to sustain the chemical reaction, whereas in a battery the chemicals present in the battery react with each other to generate an electromotive force (emf).Fuel cells can produce electricity continuously for as long as these inputs are supplied.