Question
Download Solution PDFThe mid-frequency input impedance of the JFET amplifier given in the following figure is approximately :
This question was previously asked in
KVS TGT WET (Work Experience Teacher) Official Paper
Answer (Detailed Solution Below)
Option 2 : 18 kΩ
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KVS TGT Mathematics Mini Mock Test
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Detailed Solution
Download Solution PDFConcept:
At mid frequency, all external capacitors will be short circuit.
small signal model of given circuit is:
input imepedence Zi = 9k + (100k || 10k)
= 9k + 9.09k
=18.09k
so correct option is 2
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