What are the static characteristics of a $p-n$ junction? Write its types.

(N/A) The static characteristics of a $p-n$ junction diode represent the relationship between the voltage applied across the diode and the current flowing through it. These characteristics are obtained by plotting a graph between the voltage $(V)$ and the current $(I)$,which is known as the $V-I$ characteristic curve.
There are two types of static characteristics:
$1$. Forward Bias Characteristics: When the $p$-region is connected to the positive terminal and the $n$-region to the negative terminal of an external battery,the diode is said to be in forward bias. In this state,the current increases exponentially with voltage,typically in the order of $mA$.
$2$. Reverse Bias Characteristics: When the $p$-region is connected to the negative terminal and the $n$-region to the positive terminal,the diode is in reverse bias. In this state,a very small current (reverse saturation current) flows,typically in the order of $\mu A$,until the breakdown voltage $(V_{br})$ is reached.