joehalford joehalford

26-05-2017
Physics

contestada

If a solar panel phone charger has a total energy input of 6.25W, and an efficiency of 40% (2.5W), is only 2.5J of energy going to the phone a second?

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kkeaeman kkeaeman

27-05-2017

n = POTu/POTr
0,4 = POTu/6,25
Pot = 2,5 W

The question is true

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