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प्रश्न
Select the correct alternatives
When a bulb lights up on passing current, the change of energy is
पर्याय
from electrical energy to heat energy
from electrical energy to light energy
from electrical energy to heat and light energy
from electrical energy to mechanical energy.
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उत्तर
from electrical energy to heat and light energy
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संबंधित प्रश्न
Write true or false of the following statement.
One form of energy cannot be converted into another form.
Select the correct alternatives
When we rub our hands
What is energy?
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Answer the following in a word or two or in a sentence.
Write the formula for calculating the efficiency of a machine.
Answer the following in short.
What do you understand by the term efficiency of a machine’?
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Write the type of energy.
The work done on an object does not depend upon the
The weight of a person on planet A is about half that on the earth. He can jump up to 0.4 m in height on the surface of the earth. How high he can jump on planet A?
