Question

Mention the energy conversion in a wind mill when it is used to generate electrical energy

Answer 1

Answer:

Explanation:

Energy converts as follows:-

Wind energy to kinetic energy

Kinetic energy to mechanical energy

Mechanical energy to electrical energy

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Answer 2

Answer:

As well as using the power of the sun to heat water, living spaces or produce electricity using photovoltaic cells, we can also use the suns resource in the form of Wind Energy to generate electrical power as it is the suns solar energy that controls our weather.

The sun heat’s our planet unevenly, making the air hotter around the equator as it absorbs more energy and colder near the poles. Air expands when it is warmed and contracts when it is cooled. These differences in temperature cause convection currents to flow around the globe as the denser air from the colder regions moves to the warmer regions were the air is lighter. This movement of air within the atmosphere of the earth from a hotter place to a colder place is what we call the “wind”, and which can be weak or strong depending upon the solar energy striking the earth at that time.

Also, since both the Earth’s land mass and its oceans absorb and release solar energy back into the atmosphere at different rates, there is a constant shift of air from between the Earth’s surface and the atmosphere causing the air to move around in currents, again generating “wind energy”. The Earth’s rotation also plays a major role in wind energy production.

wind turbine array

An Array of Wind Turbines

Then we can define wind as “air in motion” which can vary from zero to high gusts. In theory, the world has an inexhaustible supply of free wind energy as every corner of the earth receives the effects of the wind at some time during the day. Also, due to annual variations, such as winter or summer time, or geographic locations, such as flat desert or mountain ranges, some parts of the world receives more of the winds energy than others. With fossil fuel supplies running out, Wind Energy and Wind Power are now becoming an important renewable energy source.