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Wind Mill

A windmill is...

Question

A windmill is a machine that converts wind energy to rotational energy.

A

False

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B

True

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Solution

The correct option is B True

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Similar questions

Q. Windmill converts ________ energy to electrical energy.

Q. Question 14
Choose the incorrect statement regarding wind power.

(a) It is expected to harness wind power to minimum in open space.
(b) The potential energy content of wind blowing at high altitudes is the source of wind power.
(c) Wind hitting at the blades of a windmill causes them to rotate The rotation thus achieved can be utilised further.
(d) One possible method of utilising the energy of rotational motion of the blades of a windmill is to run the turbine.

Q. The blades of a windmill sweep out a circle of area A.
(a) If the wind flows at a velocity v perpendicular to the circle, what is the mass of the air passing through it in time t?
(b) What is the kinetic energy of the air?
(c) Assume that the windmill converts 25% of the winds energy into electrical energy, and that A = 30

m^{2}

, v = 36 km/h and the density of air is 1.2 kg

m^{3}

. What is the electrical power produced?

Q. In windmills, the energy of slow rotating blades transfers to fast rotating machines with the help of .

We generate energy from the wind using windmill. What is the ultimate source of that energy?

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