Advertisements
Advertisements
Question
The commercial unit of energy is :
Options
watt
watt-hour
kilowatt-hour
kilowatt
Advertisements
Solution
Kilowatt-hour is the commercial unit of electricity.
Therefore, the answer is, (c) Kilowatt-hour.
APPEARS IN
RELATED QUESTIONS
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.
In an electric fan, electrical energy changes into the mechanical energy.
What do you mean by conservation of mechanical energy? State the condition when does it hold.
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 |
Define the term 'watt'.
Name the quantity whose unit is :
(a) kilowatt
(b) kilowatt-hour
The capacity that an object has for doing work is called ______.
When a body falls freely towards the earth, then its total energy
Which one of the following is not the unit of energy?
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?
