Respuesta :

yeetosaurus69

Answer:

20 V

Explanation:

Power is 100 J/s or 100 W.

We know that P = IV = [tex]\frac{V^{2} }{R}[/tex] .

Isolate the potential difference. V = [tex]\sqrt{RP}[/tex] = [tex]\sqrt{100 * 4}[/tex] = 20 V

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