Resistance and Resistivity: Copper wire #1 has a length L and a radius b. Copper wire #2 has a length 2L and a radius 2b. Which statement about the resistance across the ends of the wires is true?
A. The resistance of wire #1 is twice as high as that of wire #2.
B. The resistance of wire #1 is equal to that of wire #2.
C. The resistance of wire #1 is half that of wire #2.
D. The resistance of wire #1 is four times higher than that of wire #2.
Answer: A
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