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The diagram shows an LED light bulb.
80 W of input power
7.5 W of light power
0.5 W of heat power
Which expression gives the efficiency of the bulb?

The diagram shows an LED light bulb 80 W of input power 75 W of light power 05 W of heat power Which expression gives the efficiency of the bulb class=

Respuesta :

It’s d because it’s useful output which would be light over total input
7.5/8
onyebuchinnaji

The expression that gives the efficiency of the bulb is the ratio of the 7.5 W to 80 W.

What is efficiency?

Efficiency is the rate at which an object uses the energy supplied to it produce useful result.

Efficiency describes the ratio of output energy to input energy.

Efficiency of the light bulb = output energy/input energy x 100%

Efficiency = 7.5/80 x 100%

Thus, the expression that gives the efficiency of the bulb is the ratio of the 7.5 W to 80 W.

Learn more about efficiency here: https://brainly.com/question/15418098

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