What is the cause of the formation of the dep | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) When a $P-N$ junction is formed,the difference in concentration of charge carriers between the $P$ and $N$ regions leads to the diffusion of elect

Vedclass · Accepted Answer

Due to the diffusion of charge carriers

Vedclass · Answer

(B) When a $P-N$ junction is formed,the difference in concentration of charge carriers between the $P$ and $N$ regions leads to the diffusion of electrons from the $N$-side to the $P$-side and holes from the $P$-side to the $N$-side.As these charge carriers cross the junction,they recombine near the interface.This recombination leaves behind immobile ionized impurity atoms (negative ions on the $P$-side and positive ions on the $N$-side).These immobile ions create an electric field that opposes further diffusion,resulting in a region depleted of mobile charge carriers,known as the depletion layer.Therefore,the depletion region is primarily caused by the diffusion of charge carriers.

What is the cause of the formation of the depletion layer in a $P-N$ junction?

Similar Questions

The length of a germanium rod is $0.925 \ cm$ and its area of cross-section is $1 \ mm^2$. If for germanium $n_i = 2.5 \times 10^{19} \ m^{-3}$,$\mu_h = 0.19 \ m^2/V\cdot s$,and $\mu_e = 0.39 \ m^2/V\cdot s$,then the resistance of the rod is:

Currents flowing in each of the following circuits $A$ and $B$ respectively are

The circuit shown below contains two ideal diodes,each with a forward resistance of $50\,\Omega $. If the battery voltage is $6\,V$,the current through the $100\,\Omega $ resistance (in Amperes) is

$A$ semiconductor device is connected in a series circuit with a battery and a resistance. $A$ current is found to pass through the circuit. If the polarity of the battery is reversed,the current drops almost to zero. The device may be

Find the value of $V_{AB}$ in the given circuit.

Vedclass Test Series

Exam Paper Generator

Online Exam Module