A Rod (Length = 80 Cm) with a Rectangular Cross $\Omega$

Multiple Choice

A rod (length = 80 cm) with a rectangular cross section (1.5 mm * 2.0 mm) has a resistance of 0.20 $\Omega$ .What is the resistivity of the material used to make the rod?

A) 6.0 * 10-7 $\Omega$ . m
B) 3.8 * 10-7 $\Omega$ . m
C) 7.5 * 10- $\Omega$ . m
D) 3.0 * 10-7 $\Omega$ . m
E) 4.8 * 10-7 $\Omega$ . m