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Justify that JFET can be used as a Voltage Variable Resistor.
written 7.4 years ago by gravatar for teamques10 teamques10 ★ 65k modified 2.3 years ago by gravatar for sagarkolekar sagarkolekar ★ 11k
electronic circuits and communication
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written 7.4 years ago by gravatar for teamques10 teamques10 ★ 65k
  1. JFET is operated in the constant current portion of its output characteristics for the linear applications .
  2. In the region before pinch off , where $V_{DS}$ is small the drain to source resistance rd can be controlled by the bias voltage $V_{GS}$.The FET is useful as a voltage variable resistor …

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