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Sagot :
Lightbulb 1 has the lowest percentage of energy lost as waste : 25%
Further explanation
Given
The input, output, and waste energy of Lightbulb
Required
The lowest percentage of energy lost as waste.
Solution
Lightbulb 1 :
[tex]\tt \%energy~lost=\dfrac{50}{200}\times 100\%=25\%[/tex]
Lightbulb 2 :
[tex]\tt \%energy~lost=\dfrac{30}{100}\times 100\%=30\%[/tex]
Lightbulb 3:
[tex]\tt \%energy~lost=\dfrac{100}{150}\times 100\%=66.7\%[/tex]
Answer: lightbulb 1: 200 joules in, 50 joules wasted, 150 joules out
Explanation:
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