Question

One kilowatt hour is equal to

• A. $36\times 10^{-5}J$
• B. $36\times 10^{-4}J$
• C. $36\times 10^{5}J$
• D. $36\times 10^{3}J$

Answer 1

Answer: (C)

$1kWh=1000Wh$
$=(1000W)\times (3600s)$
$=36\times 10^{5}J.$