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प्रश्न
State the energy changes in the following case while in use:
an electric cell in a circuit
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उत्तर
Chemical energy into electrical energy.
संबंधित प्रश्न
Explain how, geothermal energy is used to generate electricity.
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
State two uses of solar cells.
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
Name the form of energy in which potential energy can change.
A metal ball of mass 2kg is allowed to fall freely from rest from a height of 5m above the ground.
What the kinetic energy of the ball just before it hits the ground ?
Write the type of energy possessed in the following case:
A moving cricket ball.
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
A body of mass 50 kg has a momentum of 3000 kg−1 ms. Calculate:
(j) the kinetic energy of the body.
(ii) the velocity of the body.
