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प्रश्न
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
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उत्तर
In an electric heater, oven, geyser, toaster etc., the electrical energy changes into heat energy.
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संबंधित प्रश्न
Write true or false of the following statement.
The energy of flowing water can be converted into electric energy (electricity).
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the highest point .
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A compressed spring
Select the renewable and non-renewable sources of energy from the following:
Wood
Select the renewable and non-renewable sources of energy from the following:
Water
Select the renewable and non-renewable sources of energy from the following:
Oil
State whether a solar cell produces a.c. or d.c.
What do you understand by the potential energy of the body?
What happens to the K.E. when
(i) the mass of the body is doubled at a constant velocity and
(ii) the velocity of the body is doubled at constant mass?
