Which device converts wind energy into electrical energy?

• A. Thermocouple
• B. Alternator
• C. Wind turbine
• D. Solar panel

Answer: (C)

The device that converts wind energy into electrical energy is a wind turbine. Wind turbines harness the kinetic energy generated by wind movement and transform it into mechanical energy. This mechanical energy is then converted into electrical energy through the use of an alternator or generator housed within the turbine system.

Wind turbines consist of large blades that rotate when wind flows over them, turning a rotor connected to a generator. As the rotor spins, it drives the generator, which produces electricity. This process allows for sustainable energy production, utilizing a renewable energy source with minimal environmental impact.

In contrast, a thermocouple is a device used to measure temperature and convert thermal energy into electrical energy but is not associated with wind. An alternator generates electrical energy typically from mechanical motion but does not capture wind energy directly. A solar panel converts solar energy into electrical energy, focusing on light rather than wind, and therefore does not relate to the conversion of wind energy.