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प्रश्न
Express watt hour and kilowatt hour in joule.
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उत्तर
1 kWh = 1W × 1 hour = 1000 W × (60 × 60) s
= 1W × 1s × 105 × 36 = 36 × 105 J = 3.6 × 106 J
संबंधित प्रश्न
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| Appliance | Current |
| Kettle | 8.5 A |
| Lamp | 0.4 A |
| toaster | 4.8 A |
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