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प्रश्न
State the energy transformation on the following:
Electricity is obtained from wind energy.
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उत्तर
Mechanical energy into electrical energy.
संबंधित प्रश्न
Define calorific value of a fuel.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A moving bus
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
State two disadvantages of producing electricity from solar energy.
What is nuclear energy?
A hydroelectric power station takes its water from a lake whose water level is 50 m above the turbine. Assuming an overall efficiency of 40%, calculate the mass of water which must flow through the turbine each second to produce power output of 1 MW. (Take g = 10 m s−2).
What do you understand by mechanical energy?
Draw a diagram to show the energy changes in an oscillating simple pendulum. Indicate in your diagram how the total mechanical energy in it remains constant during the oscillation.
Can you tell?
Describe one natural chain of transformation of energy.
A good fuel should possess:
