Why does resistance increase in reverse bias?

The resistance of p-n junction is low when forward biased and is high when reverse biased. As a result of this the diode current becomes almost zero as there is no diffision of majority carriers (electrons and holes) through the junction. Hence the resistance of the junction diode increases when reverse biased.

When a pn junction is reverse biased it offers high resistance?

A p-n junction offers a high resistance in forward bias and a low resistance is reverse bias.

How does the reverse bias effect the junction resistance?

Reverse bias increases a diode’s resistance, and forward bias decreases a diode’s resistance. A reverse bias does not permit the current to flow, whereas it flows effortlessly in forward bias through the diode.

What is resistance in reverse bias?

Under the Reverse biasing condition, the opposition offered by the diode to the reverse current is known as Reverse Resistance. Ideally, the reverse resistance of a diode is considered to be infinite. The value of reverse resistance is very large as compared to forward resistance.

Which type of biasing gives a semiconductor diode very high resistance?

Reverse biasing is to be done so that the p-n junction offers very high resistance.

In which bias the resistance is very high in pn junction diode?

reverse biasing
In reverse biasing, the p-n junction diode will show a very high resistance.

Which type of biasing gives a semiconductor diode very high resistance and why?

Which type of biasing gives a semiconductor diode very high resistance? A large increase in reverse voltage across p-n junction shows small increase in reverse current. Hence the resistance of p-n junction is high when reverse – biased.

Why does reverse biased diode has very large value of resistance?

Therefore the depletion layer widens, and does so increasingly with increasing reverse-bias voltage. This increases the voltage barrier causing a high resistance to the flow of charge carriers thus allowing only a very small electric current to leak across the PN junction.

What is the resistance of a reverse biased diode?

Ideally speaking, a diode is expected to offer zero resistance when forward biased and infinite resistance when reverse biased.