Which of the following is a characteristic of a reverse-biased p-n junction?a.Very low resistanceb.Large current flowc.Very narrow depletion regiond.Almost no current

The characteristic of a reverse-biased p-n junction is d. Almost no current.

Here's why:

A p-n junction is a boundary or interface between two types of semiconductor material, p-type and n-type, inside a single crystal of semiconductor. It is created by doping, that is by ion implantation into the semiconductor material.

When the p-n junction is reverse biased, it means the p-side of the junction is connected to the negative terminal of the power supply and the n-side is connected to the positive terminal. In this condition, the holes in the p-region and the electrons in the n-region are pulled away from the junction. This increases the width of the depletion region which prevents the flow of charge carriers across the junction.

Therefore, in a reverse-biased p-n junction, there is almost no current (option d) because the potential barrier prevents the movement of the charge carriers.