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

Question

Numerical

Solution

Total energy consumption during the whole month = 250 minutes

1 unit = 1kWh

250 unit = 250 kWh

= 250 × 1000 Wh

= 250 × (1000 W) (3600 s)

= 250 × 1000 × 3600 W s

= 900 × 10⁶

= 9 × 10⁸J

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Concept of Energy

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