Home
Class 12
PHYSICS
Which one of the following is the value ...

Which one of the following is the value of 1 kWh of energy converted into joules?

A

`1.8xx10^6 J`

B

`3.6xx10^6 J`

C

`6.0xx10^6 J`

D

`7.2xx10^6 J`

Text Solution

Verified by Experts

The correct Answer is:
B
kWh (kilowatt-hour) and Joules are two energyunits. 1 watt is defined as 1 joule/second. So if you multiply a watt times seconds, you get Ws which is also a joule. So lkW is 1000W, and an hour is 60 seconds `xx` 60 minutes.
So lkWh = 3600 kWs = 3,600,000 Ws = 3,600,000J
So lkWh=`3.6xx10^6J`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRICITY & MAGNETISM

    NDA PREVIOUS YEARS|Exercise MCQ|152 Videos

  • Mechanics

    NDA PREVIOUS YEARS|Exercise Physics|164 Videos

Similar Questions

Explore conceptually related problems

1kWh=

1kWh= ?

Knowledge Check

  • Which one of the following is OT an energy converter ?

    A
    Solar panel
    B
    Steam engine
    C
    Plain glass
    D
    Electric iron

  • Which one of the following processes // devices uses solar energy and converts it to chemical energy?

    A
    Photosynthesis
    B
    Solar pond
    C
    Solar heater
    D
    Solar cells

  • Which one of the following crop plants is very efficent converter of solar energy and whose net productivity value ranges from 2 kg to 4 kg/ m^(2) or even higher?

    A
    Sugarcane and maize
    B
    Rice and wheat
    C
    Wheat and Potato
    D
    Bajra and Barley

    • Similar Questions

    Explore conceptually related problems

    Convert 40 calories into joules.

    In which of the following mechanical energy is converted to heat energy

    Which one of the following does not convert electrical energy into light energy?

    Which of the following converts sunlight into heat energy?

    Which one of the following metals is used in the filaments of photo-electric cells that convert light into electric energy ?

    Home
    Profile