Hours? Ridiculous.
resistance=resitivity*length/area
area= PI (d/2)^2 you are given diameter d, 0.0011meter
area= PI (.00055)^2=9.50e-7
can you handle it from here?
What is the resistance of a 3.9-m length of copper wire 1.1 mm in diameter? The resistivity of copper is 1.68×10^−8Ω⋅m.
R=______ Ω
Please Help. I've been at this for hours.
1 answer