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The efficiency of a device such as a lamp can be calculated using this equation: efficiency = (useful energy transferred ÷ energy supplied) × 100 Using the formula, calculate th…

The efficiency of a device such as a lamp can be calculated using this equation: efficiency = (useful energy transferred ÷ energy supplied) × 100 Using the formula, calculate th…
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The efficiency of a device such as a lamp can be calculated using this equation: efficiency = (useful energy transferred ÷ energy supplied) × 100 Using the formula, calculate the efficiency of the lamp shown in the diagram above.

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User Iancoleman
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8.9k points

2 Answers

4 votes

Post a picture of the diagram and I can help!

answered
User RngTng
by
8.4k points
2 votes

Answer:

70%

Step-by-step explanation:

I did this on USATestPrep

answered
User Vendettacore
by
8.2k points
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