Question

Express 5 kWh into joule.

Answer 1

5×1000×60×60i think this is right

Answer 2

$\sf \Large Solution!!$

1 kilowatt hour (kWh) = 1000 W × (60 × 60 s)

= 3.6 × 10⁶J

Therefore, 5 kWh = 5 × 3.6 × 10⁶J

= 1.8 × 10⁷J