Question

A certain household has consumed 250 units of energy during a month. How much energy is this in joules?​

Answer 1

question:

A certain household has consumed 250 units of energy during a month. How much energy is this in joules?

answer:

1 unit =1 kWH

1 kWH=3.6×106 J

250 KWH = 250 ×3.6×106

= 250 ×36 × 106

———

106

= 900 ×106

= 9× 106

= 9× 108 J

Therefore ,

250 units of energy = 250 — 3.6 — 106 = 9 — 108 J.

Answer 2

Question ::-

A certain household has consumed 250 units of energy during a month. How much energy is this in joules?

Given ::-

• Household consumed energy in month = 250 units.

To find ::-

• How much energy is this in joules ?

Solution ::-

Energy consumed by certain households in a month = 250 units.

E = 250 units = 250kWh

∴ E = 250 × 3.6 × ${10}^{6}$

[ 1Kwh = 3.6 × ${10}^{6}$ J ]

E = 9 × ${10}^{8}$

_____________

• Kwh is measured in joules.

• 1Kwh = 3600000 joules = 3.6 × ${10}^{6}$J

• Joule is a small unit of energy.