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प्रश्न
Name the energy changes for each of the following cases:
dynamo
उत्तर
A dynamo converts mechanical energy into electrical energy
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संबंधित प्रश्न
Which of the following produces more heat (per unit mass) on burning?
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
State the energy changes in the following case while in use:
an electric bulb
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
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(i) A candle flame
(ii) A torch is lighted
(iii) A microphone is used in a meeting
(iv) A cycle dynamo
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Explain the principle of working of the windmill for generating electricity.
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Can you tell?
Describe one natural chain of transformation of energy.
