SOLUTION: When an electric current flows through a wire, the resistance to flow varies directly as the length and inversely as the cross-sectional area of the wire. If the length of the wire
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Question 1147552: When an electric current flows through a wire, the resistance to flow varies directly as the length and inversely as the cross-sectional area of the wire. If the length of the wire changes by a factor of 1.3, and the diameter of the wire changes by a factor of 2.3, by what factor will the resistance change?
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!
The increased length increases the resistance by a factor of 1.3.
The increased diameter decreases the resistance by a factor of (2.3)^2.
Overall the resistance changes by a factor of (1.3)/(2.3)^2.
Use a calculator to convert that to any required form.
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