Advertisements
Advertisements
प्रश्न
The commercial unit of energy is :
पर्याय
watt
watt-hour
kilowatt-hour
kilowatt
Advertisements
उत्तर
Kilowatt-hour is the commercial unit of electricity.
Therefore, the answer is, (c) Kilowatt-hour.
APPEARS IN
संबंधित प्रश्न
A certain household has consumed 250 units of energy during a month. How much energy is this in joules?
Write true or false of the following statement.
One form of energy cannot be converted into another form.
Fill in the blank
An electric fan converts electrical energy into ______ energy.
Fill in the blank
Cooking gas converts _______ energy into heat energy.
Fill in the blank
The S.I.unit of energy is ______
Match the following:
| Column A | Column B |
| (a) Needle | (1) class II lever |
| (b) Doorknob | (2) inclined plane |
| (c) Ramp | (3) Class I lever |
| (d) Lemon crusher | (4) Wheel and axle |
| (e) Seesaw | (5) wedge |
Name the quantity whose unit is :
(a) kilowatt
(b) kilowatt-hour
When a body falls freely towards the earth, then its total energy
The work done on an object does not depend upon the
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)
