The output characteristics of a JFET closely resemble the output characteristics of a __________ Valve(a) diode(b) pentode(c) triode(d) tetrodeI had been asked this question in an interview for job.Question is from Transconductance Amplifiers topic in portion Differential and Multistage Amplifiers of Electronic Devices & Circuits

The output characteristics of a JFET closely resemble the output chara

1.	The output characteristics of a JFET closely resemble the output characteristics of a __________ Valve(a) diode(b) pentode(c) triode(d) tetrodeI had been asked this question in an interview for job.Question is from Transconductance Amplifiers topic in portion Differential and Multistage Amplifiers of Electronic Devices & Circuits
Answer» The correct answer is (b) pentode The EXPLANATION: The pentode consists of an evacuated glass envelope containing five electrodes in this order: a cathode heated by a filament, a control grid, a screen grid, a suppressor grid, and a plate (anode). Similar to a pentode valve, with which the JUNCTION FET greatly RESEMBLES in its operational characteristics, the simplest way of calculating STAGE gain is by the RELATIONSHIP – A = gfs . RL

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