How does a wind mill generate electric energy ?
potential energy of wind- rotation of wind mill- electrical energy
kinetic energy of wind- rotation of wind mill- electrical energy
solar energy- rotation of wind mill- electrical energy
sea breeze and land breeze- rotation of wind mill- electrical energy
Kinetic energy of wind is used to rotate the wind mill which rotates the turbine and hence the dynamo generates electricity.
Select the correct statements from the following.
(i) Wind energy is renewable source of energy.
(ii) Installation cost of wind mill is low.
(iii) Wind mills are generally installed in populated areas.
(iv) Energy produced from wind mills is non-polluting.
How is wind energy used in wind mills?
A wind-powered generator converts wind energy into electrical energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. For wind speed v, the electrical power output will be proportional to