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प्रश्न
Fill in the blank
The S.I.unit of energy is ______
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उत्तर
The S.I.unit of energy is joule
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संबंधित प्रश्न
Select the correct alternatives
The correct statement is
What is energy?
Tick the most appropriate answer.
The force applied on a machine to do work is called the
Answer the following in a word or two or in a sentence.
Write the formula for calculating the efficiency of a machine.
Name the commercial unit of measurement of energy.
How many joules are there in one kilowatt-hour?
Name the quantity whose unit is :
(a) kilowatt
(b) kilowatt-hour
What is the common name of '1 kWh' of electrical energy?
Derive the relation between commercial unit of energy (kWh) and SI unit of energy (joule).
Observe the picture and put a tick (✓) if work is done and put a cross (x) if work is not done.
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