The moving air rotates the blades of a wind mill.

True

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False

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Solution

The correct option is A True

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Similar questions

Q. The blades of a wind mill sweep out a circle of area

A

. If wind flows with velocity

v

perpendicular to blades of wind mill and its density is

ρ

, then the mechanical power received by wind mill is:

Q. Consider the following processes:
1. Wind rotates the blades of the windmill.
2. Electrical energy produced.
3. Turbine rotates.
4. Blowing of wind.
Which of the following predicts the correct order of events?

Consider the following processes:
1. Wind rotates the blades of the windmill
2. Electrical energy produced
3. Turbine rotates
4. Blowing of wind
Which of the following predicts the correct order of events?

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. What is a wind mill ? Write any two uses of a wind mill.

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