A wire is 20 cm long and has a cross section of 1 cm^2
. If its resistance is 40 ohm, what
will be its resistivity?
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2
L=20cm
A=1 cm²
R=40 ohm
R= resistivity ×l/A
Resistivity =R×A/l
Resistivity=40/20=2
I hope this helps ( ╹▽╹ )
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