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10-08-2017
Mathematics

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The current in a simple electrical circuit is inversely proportional to the resistance. The current is 80 amps when the resistance is 50 ohms. What is the current when the resistance is 40 ohms?

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Аноним Аноним

10-08-2017

I = / r where I = current and r = resistance

80 = k / 50 so
k = 400

so we have I = 400/r

when r = 40
I = 400/40 = 10 amps

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