SOLUTION: If the voltage V in an electric circuit is held constant, the current I is inversely proportional to the resistance R. If the current is 60 amperes when the resistance is 228 ohms,

Question 1200307: If the voltage V in an electric circuit is held constant, the current I is inversely proportional to the resistance R. If the current is 60 amperes when the resistance is 228 ohms,find the current when the resistance is 120 ohms
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
the inverse proportion formula is y = k / x
k is the constant of variation.
when you keep V constant, then V becomes the constant of variation and you get:
k becomes V
y becomes I
x becomes R
the inverse proportion formula becomes I = V / R
if the current is 60 amperes when the resistance is 228 ohms, the formula becomes:
60 = V / 228
solve for V to get V = 60 * 228 = 13680.
that becomes the constant of variation because it doesn't change.
when the resistance is 120 ohms, the formula of I = V / R becomes:
I = 13680 / 120
solve for I to get I = 114 amperes.
that should be your answer.

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