(b) what will be its resistivity? Choose and explain your choice or show your work to receive full credit(I point for correct and 2 points for explanation or work shown).A)4pB)2pC)pD)p/2E)p/4

4. (8 Points) A cylindrical wire has a resistance R and resistivity p. If its length and diameter are BOTH cut in half, (a) what will be its resistance? Choose and explain your choice or show your work to receive full credit (2 point for correct and 3 points for explanation or work shown) 2R R E) R/4 A) C) D) R/2 4R B)