0
When the P side is connected to the positive polarity of the cell and the N side to the negative polarity of the cell then the diode is said to be forward biased. In the forward biased condition when the voltage exceed the potential barrier already existing at the junction of the p-n diode then current flows freely.
When the connections are given interchanged with the cell, then p-n diode is said to be reverse biased. So no current flow is possible though we increase the voltage applied to it. But when the voltage exceeds certain limit then the junction will be broken and abruptly large current will start flowing and the diode is found punctured. No more usage. In case of reverse bias there is a possibility of a feeble current to flow. This is because of the minority carriers of electricity.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
P-n junction diode?
A PN Junction Diode is one of the least complex Semiconductor Devices around, and which has the normal for passing current in one and only heading just. Be that as it may, dissimilar to a resistor, a diode does not carry on directly regarding the connected voltage as the diode has an exponential current-voltage ( I-V ) relationship and thusly we can not portrayed its operation by just utilizing a comparison. ex: Ohm's law.
What is the temperature of germanium diode compare to silicon diode?
97f
What is unit of diode?
Unit of diode? It seems irrelevant query
What parameter in a germanium diode differs from those in a silicon diode?
germenium diode contains majority electron as a charge carriers while the silicon diode contains holes as a majority charge cariers,
What is the difference between a silicon diode and a germanium diode?
The silicon diode (unless its a Schottky diode) conducts at approximately 0.6 volts. The germanium diode, however, conducts at a much lower voltage, typically 0.2 volts. This means that the germanium diode is better at small signal rectification applications, such as AM radio detectors, allowing a smaller tuner tank circuit.
Reverse characteristics graph of pn junction diode?
what is the difference between reverse characteristics of zener diode and a practical diode ?
Why tunnel diode are used in negative resistance region?
because that the tunnel diode is a standard pn junction diode in many respect except its highly doped pn junction so it has some characteristics in the negative resistance region another that its a standard diode
What is the explanation for the vi characteristics of p-n junction?
The VI characteristics of PN junction diode when used as a diode rectifier are reverse bias and rectification is shown by an asymmetrical current flow.
What are the limiting values of a PN junction Diode?
A: heat And PIV(Peak Inverse Voltage) or so called Peak Reverse Voltage is limit the diode characteristics.
Is the pn junction diode is a bipolar or unipolar?
diode is unipolar
What is the opposite of diode?
another name for diode is "pn" junction.
Is it pn junction diode used as voltage regulator?
zener diode
What is use of the diode?
The use of the pn diode is for rectification. It can also be used as a switch.
Is Gunn diode a PN junction?
no....is n't
What is the difference between an ideal zener diode and practical zener diode?
Zener diode is heavily doped pn junction diode.
What is the difference between p n junction and zener diode?
The difference between the pn-junction diode and the zener diode is that the pn-junction diode is used for rectification while the zener diode is used for rectification and stabilization. Also, the zener diode can function in the breakdown region while the pn-juntion diode can not function in that regime.
Why use the PN junction diode in rectifier?
We use pn junction diode in rfctification as a rectifier becase it allows current to flow in one direction only, i.e. in forward biase only , and stop current to flow in reverse baised. thats why we use pn junction diode in rectification.
