The diagram represents a pair of parallel metal plates $4.0\,\text{mm}$ apart, connected to a $9.0\,\text{V}$ battery. Find the electric field strength between the plates.
- A$4.4 \times 10^{-4}\,\text{N C}^{-1}$
- B$3.6 \times 10^{-2}\,\text{N C}^{-1}$
- C$36\,\text{N C}^{-1}$
- D$2.3 \times 10^{3}\,\text{N C}^{-1}$