Question:medium

Calculate the circuit output resistance in the common drain amplifier with \[ r_d=100~k\Omega,\qquad g_m=990~\mu S \] and \[ R_L=10~k\Omega. \]

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For a source follower, output resistance is very low and is approximately equal to \[ \frac{1}{g_m} \] when other resistances are much larger.

Updated On: Jun 25, 2026

\(322~\Omega\)
\(332~\Omega\)
\(990~\Omega\)
\(10~k\Omega\)

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The Correct Option is B

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