Copper Wire #1 Has a Length L and a Radius

question 157

Multiple Choice

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.

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