SOLUTION: The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. A wire with a length of 200 inches and a diameter of 1/4 inch has a r

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Question 821281: The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. A wire with a length of 200 inches and a diameter of 1/4 inch has a resistance of 20 ohms. Find the electrical resistance in a 600 inch wire with the same diameter.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
20/200=x/600
200x=12000
x=60 ohms
Diameter stays the same so just the length changes
so it is just a linear relationship.