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The electrical resistance of a wire varies directly as its length and inversely as the square...

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Basic Math

The electrical resistance of a wire varies directly as itslength and inversely as the square of its diameter. A wire with alength of 200 inches and a diameter of one-half of an inch has aresistance of 10 ohms. Find the electrical resistance in a 500 inchwire with the same diameter.

Group of answer choices

25 ohms

50 ohms

200 ohms

400 ohms

Answer & Explanation Solved by verified expert
4.4 Ratings (746 Votes)
Data givenThe electrical resistance of a wire varies directly as itslength and inversely as the square of its diameterA wire with a length of 200 inches and a diameter of onehalf ofan inch has a resistance of 10    See Answer
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