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The cut-off frequency of a JFET is ___________

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The cut-off frequency of a JFET is ___________

(a) linearly related to the transconductance of the JFET

(b) inversely proportional to the transconductance of the JFET

(c) exponentially related to the transconductance of the JFET

(d) logarithmically related to the transconductance of the JFET

This question was posed to me in exam.

This key question is from Characteristics of JFET topic in chapter FET Amplifiers of Analog Circuits

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The correct answer is (a) linearly related to the transconductance of the JFET

To elaborate: The cut-off frequency is seen to be linearly related to the transconductance of the JFET. This is typically due to the reactance of the capacitors.

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