Question

show that 1kWh =3 .6×10^6J​

Answer 1

Answer:

Explanation:

1kW x h = 3.6 x 10^6 joules

=> 1000W x 1h = 3.6 x 10^6 joules

But one watt is defined as 1J which implies 1000W = 1000J/s .

Now convert 1h into seconds :

1h = 60 min = 60 * 60 sec = 3600s

=> 1000W x 1h = 1000J/s x 3600s

=> 1000W x 1h = 3600000 J

=> 1kWh = 3.6 x 10^6 J

Hence, proved

Answer 2

Answer

Answer

The Joule (J) is the unit of measure for energy or work.

The quantity of ... 1 kWh = 1000 Wh = 1000 W x 3600 second = 3.6 MWs = 3.6 MJ.

· ... We can also write it as 3.6 ×10^ 6.

it is proved.

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