Compared to a $\text{p-n}$ junction with $\mathrm{N}_{\mathrm{A}}=\mathrm{N}_{\mathrm{D}}=10^{14} / \mathrm{cm}^{3}$, which one of the following statements is $\text{TRUE}$ for a $\text{p-n}$ junction with $\text{N}_{\text{A}}=\text{N}_{\text{D}}=10^{20} / \text{cm}^{3}?$
- Reverse breakdown voltage is lower and depletion capacitance is lower
- Reverse breakdown voltage is higher and depletion capacitance is lower
- Reverse breakdown voltage is lower and depletion capacitance is higher
- Reverse breakdown voltage is higher and depletion capacitance is higher