IB
IBO
Physics
May 2013
QP-201305-Physics-P1(TZ2)-SL · Question 16
Question (excerpt):
2213-6516 16. A copper wire with length L and radius r has a resistance R. What is the radius of a copper wire with length 2 L and resistance R? A. 2r B. 2r C. 2 r D. 2 r – 9 – M13/4/PHYSI/SPM/ENG/TZ2…
2213-6516 16. A copper wire with length L and radius r has a resistance R. What is the radius of a copper wire with length 2 L and resistance R? A. 2r B. 2r C. 2 r D. 2 r – 9 – M13/4/PHYSI/SPM/ENG/TZ2…
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