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प्रश्न
State the energy changes in the following case while in use:
a ceiling fan
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उत्तर
electrical energy into mechanical energy
संबंधित प्रश्न
Define calorific value of a fuel.
What is the source of heat contained in geothermal energy?
Write an expression for the potential energy of a body of mass m placed at a height h above the earth's surface. State the assumptions made, if any.
Name the form of mechanical energy, which is put to use.
State the energy transformation on the following:
Electricity is obtained from wind energy.
Give three examples of bodies possessing potential energy.
State two advantages and two disadvantages of using hydro-energy for producing electricity.
Give one example when:
Electric energy changes to potential 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.
A good fuel should possess:
