Advertisements
Advertisements
प्रश्न
Name the commercial unit of measurement of energy.
Advertisements
उत्तर
Kilowatt- hour (kWh) is the commercial unit of measurement of energy.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
An electric fan converts electrical energy into ______ energy.
Select the correct alternatives
When a bulb lights up on passing current, the change of energy is
Define the term efficiency of a machine.
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.
How many joules are there in one kilowatt-hour?
Derive the relation between commercial unit of energy (kWh) and SI unit of energy (joule).
A certain household consumes 650 units of electricity in a month. How much is this electricity in joules?
Find out the form of energy possessed by the following thing.
A rock on the top of a hill
A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g = 10 m s–2)
