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  • A 100-watt bulb lights 10 hours daily. In a month of 30 d...
Multiple choice

A 100-watt bulb lights 10 hours daily. In a month of 30 days it will consume:

  1. 100 KWH units

  2. 30 KWH units

  3. 3 KWH units

  4. 10 KWH units

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Energy = Power x Time. 100 watts x 10 hours/day = 1000 watt-hours or 1 KWH per day. For 30 days: 1 KWH/day x 30 days = 30 KWH units total.

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