Number 10 Copper Wire (Radius = 1

Multiple Choice

Number 10 copper wire (radius = 1.5 mm) is commonly used for electrical installations in homes.What is the voltage drop in 20 m of #10 copper wire if it carries a current of 12 A? (The resistivity of copper is 1.7 × 10−⁸ Ω⋅m. )

A) 0.58 V
B) 0.48 V
C) 2.7 V
D) 2.4 V
E) 0.34 V