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Physics · WORK, ENERGY AND POWER
हिन्दीAn energy equivalent to \( 5\text{ kilowatt hour (kWh)} \) is converted entirely into calories. Using standard conversion values (\( 1\text{ cal} = 4.186\text{ J} \) and \( 1\text{ kWh} = 3.6\times 10^6\text{ J} \)), the value is approximately:
Correct answer · Option 4
\( 4.30\times 10^6\text{ cal} \)
Explanation
Total energy \( = 5\times 3.6\times 10^6\text{ J} = 1.8\times 10^7\text{ J} \). In calories: \( \frac{1.8\times 10^7}{4.186} \approx 4.30\times 10^6\text{ cal} \).
