Question

During reverse bias, a small current develops known as

(a) Forward current

(b) Reverse current

(c) Reverse saturation current

(d) Active current

I had been asked this question in class test.

This is a very interesting question from The P-N Junction as a Diode in section Semiconductor-Diode Characteristics of Electronic Devices & Circuits

Answer 1

The correct choice is (c) Reverse saturation current

To explain: When the diode is reverse biased, a small current flows between the p-n junction which is of the order of the Pico ampere. This current is known as reverse saturation current.