Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of
has a resistance of
What would the resistance be for a
length, with diameter
of the same kind of wire ?
A. 6 ohms
B. 3.5 ohms
C. 18 ohms
D. -1 ohms
Answer: A
Mathematics
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