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प्रश्न
State the energy changes which take place when:
A battery lighting up a bulb.
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उत्तर
The electrical energy changes into heat energy and light energy.
संबंधित प्रश्न
State two advantages of geothermal energy.
Name the form of mechanical energy, which is put to use.
What is geo thermal energy? Explain in brief.
How much hydroelectric power is generated in India?
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
Give one example when:
Electric energy changes to sound energy.
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?
What ts the original source of energy for the electricity produced at a thermal power station?
The major problem in harnessing nuclear energy is how to
