0
A diode is a semiconductor device that allows current to flow in one direction while blocking it in the opposite direction. It functions by utilizing the principle of semiconductor physics, specifically the formation of a depletion region at the junction of different types of semiconductor material. This enables diodes to be used in various applications such as rectification, voltage regulation, and signal demodulation.
Add your answer:
Earn +20 pts
Which mode is use in digital multimeter for testing of diode?
The diode test mode is used in a digital multimeter to test diodes. This mode will typically display whether the diode is functioning properly as a one-way conductor, with a forward voltage drop measurement being displayed.
How does the selenium diode work?
A selenium diode is a type of semiconductor device that allows current to flow in one direction. When forward biased, the selenium diode conducts electricity by allowing electrons to flow through it. When reverse biased, the selenium diode blocks the flow of current by creating a depletion region, similar to other diode types.
What is an equivalent diode of a triode valve?
A semiconductor diode, like a silicon diode or a Schottky diode, can be considered the equivalent of a vacuum triode valve. Both devices allow current flow in one direction, and the diode can be used in place of the triode valve in certain electronic circuits for rectification purposes. The diode has a simpler structure and operation compared to the triode valve.
How do you identify the polarity of a diode when the tester is on diode scale?
Connect the positive lead of the tester to the anode of the diode and the negative lead to the cathode. If the tester displays a voltage drop or a forward bias reading, the diode is forward biased and the anode is positive. If the tester displays an OL or reverse bias reading, the diode is reverse biased and the anode is negative.
What is the typical value of the barrier potential for a silicon diode?
Forward biase the given diode by using a Variable resistor in the circuit. By adjusting the value of variable resistor you will adjust the voltage being applied to junction diode. First adjust the resistance such that no(negligble) current flows through the circuit. Now start decreasing the value of resistance. Note the voltage across resistor(Vr) when current just starts flowing through the circuit. Then Potential barrier of diode will be: Vb=V-Vr Vb:Barrier Potential V:Battery Voltage Vr:Voltage Drop across resistance when current just starts flowing through the circuit.
Diode will work on zero bias or not?
diode does not work on zero bias
Practical diode model define and explained?
a way of diode modelling in which diode just work as an energy source in the circuit
Does a diode works when the ignition key is off?
No a diode will not work when the ignition key is off.
What is the disadvantage and advantage of photo diode and transistor?
photo diode donot work for long distance photo diode act as a receiver
How do LEDs work?
L.E.D. Stands for Light Emitting Diode so it is a Diode that makes light...
How transistor work as a diode?
A: Actually a transistor have two diode with the base mas a common terminal. the characteristics of these tow diodes however are not the same as a common diode
How diode work as semiconductor?
Diode is made of P and N type semiconductors having PN junction. The question is meanigless.
Will a zener diode work the same as a germanium diode?
No. An ordinary diode, be it silicon or germanium, conducts in one direction only, whereas a zener diode conducts in both directions, but at different voltages. An ordinary diode is used to rectify, using its forward bias characteristics, while a zener diode is used to regulate, using its reverse bias characteristics.
When does the diode not allowed to flow the current?
A diode is a one-way gate for electrical current to flow through. You must have the right size diode for the amount of current that will be used in your circuit. The stripe on the diode is your output end. That is, the current must enter your diode at the non-stripe end and leave at the end with the stripe. This coincides with the diode symbol used on your schematic. If your diode is in backwards, the circuit will not work as the gate in the diode will block the current just the way it should.
Can diode work as switch?
yes diode can be used as a switch as it conducts current in only one direction.it is a open switch when it reverse biased.and as aclosed switch when it is forward biased.but we consider diode as ideal .
How does a p-n junction diode work as a switch?
diode conducts in forward bias.so it is on switch. in reveres bias it will not conduct.so it is off switch
Does the zener diode work after breakdown?
A: Believe it or not that is the only time that it is useful
