11. A wire has a resistance of 1 Q. If the length is increased four times and the area is doubled the original, find the new resistance of the wire. A. 50 В. 2 0 C. 10 D. 0.5 Q 12. An aluminum wire...

Extracted text: 11. A wire has a resistance of 1 Q. If the length is increased four times and the area is doubled the original, find the new resistance of the wire. A. 50 В. 2 0 C. 10 D. 0.5 Q 12. An aluminum wire has a diameter of 2 mm. What must be the diameter of copper wire of the same resistance and length as aluminum? A. 1.33 mm B. 1.45 mm C. 1.56 mm D. 1.75 mm 13. A copper wire is drawn down such that its length is doubled but the volume remains the same, what is the new resistance of the wire? А. R, В. R,/2 C. 2R1 D. 4R1