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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.
What else can I help you with?
What is the function of a pn juction?
A PN junction is a semiconductor device that acts as a diode, allowing current to flow in one direction while blocking it in the other. It is the basis of many electronic components like diodes, transistors, and solar cells. The junction creates a depletion region that helps control the flow of electric current.
What is the difference between a LED and a diode, and how does the type of diode used affect the performance of the device it is integrated into?
A Light Emitting Diode (LED) is a type of diode that emits light when current flows through it. A diode is a semiconductor device that allows current to flow in one direction only. The type of diode used in a device can affect its performance by influencing factors such as efficiency, brightness, and color of the light emitted. Different diodes have different characteristics that can impact the overall performance of the device they are integrated into.
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 unit of diode?
The unit of a diode is the ampere (A), which measures the flow of electric current through the diode. It indicates the amount of current passing through the diode at a given moment.
What is the significance of the diode load line in analyzing the operating point of a diode circuit?
The diode load line helps determine the operating point of a diode circuit by showing the possible combinations of voltage and current that the diode can have. This analysis is important for understanding how the diode will behave in the circuit and ensuring it operates within its specified parameters.
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.
