The Resistance, in Ohms, of a 25 -Foot Piece of Wire

Multiple Choice

The resistance, in ohms, of a 25 -foot piece of wire is given by the function $R(d) =\frac{0.025}{d^{2}}$ , where $d$ is the diameter of the wire in inches. What is the resistance, rounded to the nearest hundredth of an $\mathrm{ohm}$ , if the wire has a diameter of 0.05 inches?

A) $15.67 \mathrm{ohms}$
B) $9.66 \mathrm{ohms}$
C) $10.12 \mathrm{ohms}$
D) $10.00 \mathrm{ohms}$