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  • An LED light uses 150 J of energy in 3 seconds. What is i...
Multiple choice

An LED light uses 150 J of energy in 3 seconds. What is its power?

  1. 50 watts

  2. 30 watts

  3. 10 watts

  4. 450 watts

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

Power is calculated as Energy divided by time (P = E/t). 150 J / 3 s = 50 Watts.

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