physics
posted by katie on .
Find the crosssectional area of copper wire that is 55.4 m long and has a resistance of 0.943 ohms. The resistivity of copper is 1.79 x 10^8 ohms m.

resistance= resistity*length/area
solve for area.
Are you answer grazing? THese are extraordinary simple problems, yet you submit no work, asking the questions.