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