## PHYS345 Electricity and Electronics

**Hint for P14-9**
There is no real need to find the full analytical expression for the gain in this exercise.
You may approximate the behavior by determining the gain at low frequency and at high
frequency *and* the breakpoint frequencies that connect the two regions.

That is, at a frequency sufficiently low that X_{C} is infinity,
Z_{f} approaches 5M. At frequencies high enough that X_{C}
becomes a short, Z_{f} will reduce to the parallel combination of 5M
and 555k.

"http://www.physics.udel.edu/~watson/phys345/protected/exercises/hints/P14-9.html"

Last updated Dec. 1, 1998.

Copyright George Watson, Univ. of Delaware, 1998.