A electrical cable is made up of seven copper-wire strands, each with a diameter of $0.30\,\text{mm}$, linked in parallel. The resistivity of copper is $1.72 \times 10^{-8}\,\Omega\,\text{m}$. The current flowing in the cable is $13\,\text{A}$. What is the potential difference (p.d.) between two points on the cable separated by a distance of $1.0\,\text{m}$?
- A$0.0045\,\text{V}$
- B$0.11\,\text{V}$
- C$0.45\,\text{V}$
- D$3.2\,\text{V}$