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A diode is a perfect short when it is forward biased True or False?
Wiki User
∙ 16y ago
A forward biased diode is not a complete short. Depending on it's design, it will have some forward voltage drop. Silicon diodes normally hafe a drop around .7 V, germanium have a drop around .2V. Some of the newer Schottky diodes fall in between. Selenium diodes have a greater FWD drop.
Wiki User
∙ 16y ago
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The bluk resistance of a diode depends on?
Bulk resistance of diode depends on how it is biased. The bulk resistance of a diode is the approximate resistance of the diode when it is forward biased.
How is a non-conducting diode biased?
A nonconducting diode is biased in the reversed direction (reverse polarization).
Does the diffusion capacitance exit in forward biased diode?
Yes
How much voltage is there across a germanium diode when it is forward biased?
About 0.2V
What is a device made of semiconductor material that acts like a switch controlling the flow of electrons in a chip?
if a diode is in forward biased the diode acts as switch is on and when we apply the diode in reverse biased then it work as the switch as off.
What happen of a a diode When forward-biased?
when a diode is forward biased it conducts current
Zener diode operates In an extremely high forward bias?
False, a zener diode is normally operated reverse biased in breakdown.
The bluk resistance of a diode depends on?
Bulk resistance of diode depends on how it is biased. The bulk resistance of a diode is the approximate resistance of the diode when it is forward biased.
Zener diode with its forward biase?
acts like a normal diode in forward biased condition
In which configuration does a diode conduct?
Forward biased is the configuratiuon that a diode conducts.
How is a non-conducting diode biased?
A nonconducting diode is biased in the reversed direction (reverse polarization).
List the two conditions under which a diode is operated?
A diode is a semiconductor material which has p region and n region. In order to "turn on" and conduct current in the forward direction, a diode requires a certain amount of positive voltage to be applied across it. An ideal diode conducts only when the diode is forward biased, and then the voltage drop across the diode (Vd) is zero. When the ideal diode is reverse biased, no current flows. The two conditions to operate a diode are: (a) Current flow is permitted; the diode is forward biased. (b) Current flow is prohibited; the diode is reversed biased. When the polarity of the battery is such that current is allowed to flow through the diode, the diode is said to be forward-biased.
How much voltage is there across a silicon diode when it is forward biased?
0.7 The voltage across a silicon diode when it is forward biased should be greater than or equal (>=) 0.7volts.
How much voltage appears across a zener diode when it is forward-biased?
That depends on the zener voltage rating:"low voltage" zeners are just a simple single diode, the zener diode"high voltage" zeners contain 2 back to back diodes in one package, the zener diode and an ordinary diode that is reverse biased when the zener diode is forward biased to block forward conduction of the zener and protect it from overcurrent damage if installed backwards by mistakeThus in "low voltage" zeners when forward biased they will have a normal diode drop (e.g. 0.7V), but "high voltage" zeners when "forward biased" they will act open due to the reverse biased blocking/protection diode in series with the zener.
Is less than or greater than zero external voltage applied on diode when you deal with forward biased?
A forward-biased diode has a positive DC on its anode with respect to its cathode.
Does the diffusion capacitance exit in forward biased diode?
Yes
Why do we get current in reverse bias?
because semiconductor diodes are not perfect insulators when reverse biased. if you want a diode that is a perfect insulator when reverse biased, use a vacuum tube diode.
