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प्रश्न
Give one example when:
Electrical energy to heat energy.
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उत्तर
Electric heater while in use.
संबंधित प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
A moving cricket ball.
Name the form of energy which a body may possess even when it is not in motion. Give an example to support your answer.
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
Name five renewable sources of energy.
Explain the principle of generating electricity from hydro energy.
Name the energy changes for the following:
electric ball
The following are some of the energy transformations.
A. Electrical to light
B. Work to heat
C. Chemical to light
D. Electrical to sound
E. Mechanical to electrical
Identify the energy transformation that takes place in the following by inserting the corresponding letter in the shape provided.
(i) A candle flame
(ii) A torch is lighted
(iii) A microphone is used in a meeting
(iv) A cycle dynamo
(v) A piece of metal is being filed
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 ?
How much hydro-electric power is generated in India?
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?
