Posted by matrix school 2 on .
the resistance of 100.0cm of constantan wire whose diameter of crosssection is 0.55m is 5ohm
find the resistivity of constantan wire

physics 
bobpursley,
resistance=resitivity(length/area)
solve for resistivity. Normally, One does not deal with wire that is that size. 55 cm diameter wire must be pretty heavy, at least one meter of it. I know my hoist could not lift it. It is bigger than the engine in my car.