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What does it mean by drain to source saturation current?
Drain to source saturation current refers to the maximum current that can flow from the drain to the source terminal of a field-effect transistor (FET) when it is in saturation mode. In this state, the transistor is fully on, and the current is primarily controlled by the gate voltage rather than the drain-source voltage. This condition occurs when the drain-source voltage exceeds a certain threshold, allowing the device to operate efficiently in amplification or switching applications. Understanding this current is crucial for designing circuits that utilize FETs effectively.
As the drain voltage is increased for a junction FET in the pinch off region then the drain current?
Remains constant
How drain current is controlled in JFET?
The gate voltage controls the extent of depletion layer and thereby controls the width of the channel. As the width of the channel varies, current also varies. Width of the channel is inversly proportional to drain current.
What is input impedance of fet amplifier?
Zin=Vds/Id [Vds=drain to source voltage ; Id = drain current]
The primary control on drain current in a JFET is exerted by?
Gate reverse bias
What does it mean by drain to source saturation current?
Drain to source saturation current refers to the maximum current that can flow from the drain to the source terminal of a field-effect transistor (FET) when it is in saturation mode. In this state, the transistor is fully on, and the current is primarily controlled by the gate voltage rather than the drain-source voltage. This condition occurs when the drain-source voltage exceeds a certain threshold, allowing the device to operate efficiently in amplification or switching applications. Understanding this current is crucial for designing circuits that utilize FETs effectively.
As the drain voltage is increased for a junction FET in the pinch off region then the drain current?
Remains constant
What is drain resistance?
drain resistane is basically the resistance offered by the drain terminal of the fet device.its the ratio of change in drain to source voltage to the change in drain current at a constant gate to source voltage.
Is fet having negative resistance?
JFET BFW20 shows negetive resistance when gate is grounded (VGS = 0) and vary Drain to source voltage and measure Drain current. As the voltage is increased, the drain current decreases. Prof.S.Lakshminarayana.
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How does the number of cells affect the current in a circuit?
More cells = more available power. Power = voltage * current. The orientation of the cells determines whether this power is delivered as more voltage, or more current. If the cells are in series, the voltage will increase proportionately and the available current will remain unchanged; if the cells are in parallel, the current will increase proportionately and the voltage will remain unchanged.
How drain current is controlled in JFET?
The gate voltage controls the extent of depletion layer and thereby controls the width of the channel. As the width of the channel varies, current also varies. Width of the channel is inversly proportional to drain current.
Which bipolar transistor circuit carries the lowest current?
Drain is the answer
What is the current produced by dry cells?
Alternating current.
Do wet cells and a generator both produce direct current?
No wet cells only store current.
What is input impedance of fet amplifier?
Zin=Vds/Id [Vds=drain to source voltage ; Id = drain current]
Can 2 cells push electric current harder round a circuit?
No, cells do not push electric current harder around a circuit. Electric current is driven by the voltage difference between the cells. Adding more cells in series increases the voltage, which can result in more current flowing through the circuit, but the cells themselves do not push the current harder.
