A wire of length 3 m and area of cross-section 1.7X10-6 m2 has a resistance 3X10-2ohm.
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p= RA/l
p= resistivity (ohm-meter)
R = resistance (ohm)
A = cross sectional area ( m^2)
l = length (metre)
p = 2*10^-2*1.7*10^-6/2 = 1.7*10^-8 ohm-
p= resistivity (ohm-meter)
R = resistance (ohm)
A = cross sectional area ( m^2)
l = length (metre)
p = 2*10^-2*1.7*10^-6/2 = 1.7*10^-8 ohm-
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