Kilowatt hour (kWh) and joule (J) is the SI unit of which physical quantity?

CBSE Class 9 CBSE Class 9 Science
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1

Kilowatt hour (kWh) and joule (J) is the SI unit of which physical quantity? Which of two is a bigger unit of that physical quantity and by what factor?

2

Both of the two kilowatt hour (kWh) and joule (J) are
the SI unit of energy.Kilowatt hour (kWh) is a bigger
unit of energy. As we know that,
1 Kwh = 3.6 x ${{10}^{6}}$
So , 1 Kwh / 1j = 3.6 x ${{10}^{6}}$