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A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as :

1. Electrolytic cell
2. Dynamo
3. Ni-Cd cell
4. Fuel Cell

Correct answer: Fuel Cell

Solution

A fuel cell directly converts the chemical energy of fuels like hydrogen and methane into electrical energy through redox reactions, without combustion. The other options do not perform this function.

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