2019 Problem 02
2019 Problem 02
Consider the following circuit topology with two cascaded LPFs.
Assume that the input connects to a source (not shown) with 0 Ω source resistance while the output is open.
Choose the correct statement about the circuit. In the following choices, Znode_name stands for the impedance at the named net; for input frequencies well below the corner frequency.
(a) Zx < Zout
(b) Zx = Zout
(c) Zx > Zout
(d) Zx → Zout. The symbol → means “tends to” or “approaches”; but never exactly equal.
Choose the correct statement about the circuit. In the following choices, Znode_name stands for the impedance at the named net; for input frequencies well below the corner frequency.
(a) Zx < Zout
(b) Zx = Zout
(c) Zx > Zout
(d) Zx → Zout. The symbol → means “tends to” or “approaches”; but never exactly equal.