Two $5.0 - \mu \mathrm { C }$ Point Charges Are $12 \mathrm {~cm}$

Multiple Choice

Two $5.0 - \mu \mathrm { C }$ point charges are $12 \mathrm {~cm}$ apart. What is the electric potential (relative to infinity) of this combination at the point where the electric field due to these charges is zero? $\left( k = 1 / 4 \pi \varepsilon _ { 0 } = 9.0 \times \right.$ $10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 }$ )

A) $0.75 \mathrm { MV }$
B) $1.5 \mathrm { MV }$
C) $12.5 \mathrm { MV }$
D) $0.0 \mathrm { MV }$
E) $25 \mathrm { MV }$