If a C.E. stage has a load Rl and transconductance gm, what is the factor by which the capacitance between the base and the collector at the output side gets multiplied?
A)1 + 1/gmrl
B)1 - 1/gmrl
C)1 + 2/gmrl
D)1 - 2/gmrl

Question

Quizplus · Accepted Answer

The capacitance between the base and collector at the output side gets multiplied by the Miller effect, which is represented by the factor $1 + gmRl$, where $gm$ is the transconductance and $Rl$ is the load resistance. This is equivalent to $1 + 1/gmRl$ when expressed in the form of the given options.

If a CE Stage Has a Load Rl and Transconductance Gm, What