Question: You have a wire of length L, radius Q, and resistance Q. You need to obtain half that resistance using the same material and changing only one factor. You could
A: use half the length
B: use twice the length
C: use half the radius
D: use twice the radius
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option. There should be exactly 3 paragraphs separated by the markdown divider: ***.
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