A silicon $\text{PN}$ junction is forward biased with a constant current at room temperature. When the temperature is increased by $10^{\circ} \mathrm{C}$, the forward bias voltage across the $\text{PN}$ junction
- increases by $60 \; \mathrm{mV}$
- decreases by $60 \; \mathrm{mV}$
- increases by $25 \; \mathrm{mV}$
- decreases by $25 \; \mathrm {mV}$