Physics
Physics, 31.03.2021 19:50, mommatann

Which of the following electric device use minimum energy? 1. LED of 3W used for 6 hours.
2. water motor 1 HP used for 20 minutes.
3. heater of 1200W used for 3 minutes.
4. bulb of 60W used for 1 hour. ​

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Which of the following electric device use minimum energy? 1. LED of 3W used for 6 hours.
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