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Field Effect Transistors (FET)

Q1:

What is the input impedance of a common-gate configured JFET?

A very low

B low

C high

D very high

ANS:A - very low

Common gate FET configuration provides a low input impedance while offering a high output impedance. Although the voltage gain is high, the current gain is low and the overall power gain is also low when compared to the other FET circuit configurations available.



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