Question

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Answer (Detailed Solution Below)

Option 2 : $3.6 \times 10^6\,\text{J}$ / $3.6 \times 10^6\,\text{जूल}$

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Detailed Solution

सही उत्तर $3.6 \times 10^6\,\text{J}$ / $3.6 \times 10^6\,\text{जूल}$ है।

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Question:

A $100\,\text{W}$ electric bulb is run for $10$ hours. How much energy does it consume, in joules? / $100\,\text{वाट}$ का एक बिजली का बल्ब $10$ घंटे चलाया जाता है। यह जूल में कितनी ऊर्जा खपत करता है?

1.
$3.6 \times 10^5\,\text{J}$ / $3.6 \times 10^5\,\text{जूल}$
2.
$3.6 \times 10^6\,\text{J}$ / $3.6 \times 10^6\,\text{जूल}$
3.
$1000\,\text{J}$ / $1000\,\text{जूल}$
4.
$360\,\text{J}$ / $360\,\text{जूल}$

Correct Answer: $3.6 \times 10^6\,\text{J}$ / $3.6 \times 10^6\,\text{जूल}$

Energy is power times time: $E = 100 \times 10 \times 3600 = 3.6 \times 10^6\,\text{J}$, which is exactly one kilowatt-hour. / ऊर्जा बराबर शक्ति गुणा समय: $E = 100 \times 10 \times 3600 = 3.6 \times 10^6\,\text{जूल}$, जो ठीक एक किलोवाट-घंटा है।

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