When a 10-M Length of Metal Wire Is Connected to A to A 1.5

Multiple Choice

When a 1.0-m length of metal wire is connected to a $1.5 - \mathrm { V }$ battery, a current of $8.0 \mathrm {~mA}$ flows through it. What is the diameter of the wire? The resistivity of the metal is 2.24 × 10^-8 ? ? m.

A) 12 ?m
B) 6.0 ?m
C) 24 ?m
D) 2.2 ?m