Which one of the following is I-V curve of a junction diode?

Explanation

Option B shows the I-V curve of a junction diode. This curve represents the behavior of the diode under both forward and reverse bias conditions.Under forward bias, the diode allows current to flow in the forward direction, with increasing current for increasing voltage until it reaches a certain voltage threshold called the forward voltage. Beyond this threshold, the current increases rapidly as the diode enters into saturation.Under reverse bias, the diode blocks the flow of current until the reverse voltage reaches a certain value called the breakdown voltage, beyond which the current increases rapidly.Therefore, option B is the correct choice for the I-V curve of a junction diode among the following diagrams.