How Fet Can Be Used as a Voltage Controlled Resistor?
When the Drain Current Is Reduced to a Point Where the Fet Is No Longer Conductive, the Maximum Resistance Is Reached. the Voltage at This Point Is Referred to...
When the drain current is reduced to a point where the FET is no longer conductive, the maximum resistance is reached. The voltage at this point is referred to as the pinchoff or cutoff voltage and is symbolized by VGS = VGS(off). Thus the device functions as a voltage- controlled resistor.
Why FET is voltage controlled device?
A FET is voltage controlled device because its output characteristics are determined by the Field which depends on Voltage applied.In which region FET used as a voltage-controlled resistor?
Note: The triode or ohmic region in an FET is sometimes known as the linear region. The FET operating as a voltage-controlled resistor (VCR) works in this region.
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