Why does led only light up
The LED will only light up if enough electrical current is flowing through it. The amount of current is given by I = V/R, where V is the potential difference. Why does it only light up when it is pointing in the same direction as the electric field?
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The LED will only light up if enough electrical current is flowing through it. The amount of current is given by I = V/R, where V is the potential difference. Why does it only light up when it is pointing in the same direction as the electric fiel
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A satellite in Earth orbit has a mass of 108 kg and is at an altitude of 1.99 106 m. What is the potential energy of the satellite-Earth system?
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