Use the Fact That the Resistance of a Wire Carrying

question 35

Multiple Choice

Use the fact that the resistance of a wire carrying an electrical current is directly proportional to its length and inversely proportional to its cross-sectional area. ​
A 10-foot piece of copper wire produces a resistance of 0.2 ohm.Use the constant of proportionality k = 0.000833 to find the diameter of the wire.
​
(Round the answer up to three decimal places. )
​

• A)0.23 ft
• B)0.58 ft
• C)0.38 ft
• D)0.48 ft
• E)0.73 ft

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