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What happens if a negative voltage is applied to the gate of the n and p channel MOSFET?
Wiki User
∙ 11y ago
It depends on:
1. technology, whether it's a JFET, enhancement-mode IGFET/MOSFET or depletion-mode IGFET/MOSFET, and
2. polarity, whether it's an N type or P type.
More info needed for this one.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoif the gate of MOSFET is fed with negative voltage, the transistor wont attain its saturation state. and it will be in OFF state
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Define pinch off voltage and the gate source cut off voltage?
If negative voltage is applied to the gate of a NMOS, it repels electrons from the channel region towards the bulk of the p-substrate and attaract holes from p-substrate towards the channel. The recombination between holes and electrons causes a deplation of majority carriers in the channel. Enough nagative gate voltage can cause the channel depleted of majority carriers and cuts off the current between the source and the drain. The least negative gate voltage causing this is called gate-source cut off voltage.
What happens to a quartz crystal when voltage is applied?
They blow up.
What is collector bypass capacitor?
A: It is not a bypass it is a negative feedback to effect the input voltage, Bias is when a DC voltage is applied to insure proper operation
What is negative ac voltage?
Negative voltage is voltage that is more negative in polarity than the ground of the circuit.AnswerSince 'voltage' is simply another word for 'potential difference', it can be neither negative or positive in the 'charge' sense! These terms can only be applied to 'potential', not to 'potential difference' (voltage).So, the terms 'positive' and 'negative', when applied to voltage, simply indicate sense or direction in which the potential difference is acting. For example, if you decide that a car battery's voltage is acting in the 'positive' sense in the charging circuit, then the alternator's voltage must then be acting in the 'negative' sense -in other words in the opposite direction to the battery.
Why do the voltage drops of an inductor and a lamp in a series ac circuit not equal the applied voltage?
The voltage is greater than the applied voltage, why?
What happens if very high voltage is applied to the gate of the n and p channel MOSFET?
punchthru, resulting in destruction of the FET
Define pinch off voltage and the gate source cut off voltage?
If negative voltage is applied to the gate of a NMOS, it repels electrons from the channel region towards the bulk of the p-substrate and attaract holes from p-substrate towards the channel. The recombination between holes and electrons causes a deplation of majority carriers in the channel. Enough nagative gate voltage can cause the channel depleted of majority carriers and cuts off the current between the source and the drain. The least negative gate voltage causing this is called gate-source cut off voltage.
When an alternating voltage is applied to purely resistive circuit what happens?
When an alternating voltage is applied to a purely resistive circuit, the resulting current is in phase with the voltage.
What happens to a quartz crystal when voltage is applied?
They blow up.
Will the negative charges move along the ebonite rod if a voltage is applied across it ends?
no
What happens if there is no voltage applied to the clutch?
An air conditioner clutch will not engage without voltage. If it doesn't engage, the compressor will not turn.
What is collector bypass capacitor?
A: It is not a bypass it is a negative feedback to effect the input voltage, Bias is when a DC voltage is applied to insure proper operation
What happens when negative pulse applied to scr?
It turns off. Once the SCR is turned on (fired) it stays on until the voltage across it goes to zero. One way to do that is to hit it with a negative pulse. You need to be careful about how large that negative pulse is, though, as you could destroy the SCR.
What is the definition of applied voltage?
Any voltage that is fed into or "applied" to an electrical circuit is referred to as an "applied voltage".
What is negative ac voltage?
Negative voltage is voltage that is more negative in polarity than the ground of the circuit.AnswerSince 'voltage' is simply another word for 'potential difference', it can be neither negative or positive in the 'charge' sense! These terms can only be applied to 'potential', not to 'potential difference' (voltage).So, the terms 'positive' and 'negative', when applied to voltage, simply indicate sense or direction in which the potential difference is acting. For example, if you decide that a car battery's voltage is acting in the 'positive' sense in the charging circuit, then the alternator's voltage must then be acting in the 'negative' sense -in other words in the opposite direction to the battery.
How can calculate resistance for negative dc voltage?
Resistance calculations are the same no matter what the polarity of applied voltage. R=E/I Resistance (in ohms) = Voltage (in volts) divided by Current (in amperes)
What happens in n channel at pinch off voltage that the drain current becomes constant?
At pinch off voltage, the channel is blocked at its maximum. (depletion region blocks almost entire channel, so no charge exchange). Therefore, no drain is flown through the channel.
