Question

a family uses 250 units of electrical energy during a worth. caculate this electrical energy in joule.

Answer 1

1 unit = 1 kWh = 1 kilowatt hour
1 kilowatt hour = 3.6 x 10^6 J
So 1 unit = 3.6 x 10^6 J
250 units = 250 x 3.6 x 10^6 J = 900 x 10^6 J = 900000000 joule

i hope it will help you
regards

Answer 2

$<b>$hello mate__ ☺

@itzrythm here__❤

___________________________

We know that

1 unit = 3,600,000 J

So,

250 units

= 250 × 3,600,000 J

= 900,000,000 J

= 9 × 10^8 J

Hence, the energy consumed = 9 × 10^8 J

_________________ThankU❤