What concept is reinforced by noting that all of the input current of the current-controlled voltage source amplifier must flow through the feedback resistor?
A) loop gain
B) feedback fraction B
C) virtual ground
D) gain-bandwidth product

Question

Quizplus · Accepted Answer

The concept reinforced by noting that all of the input current of the current-controlled voltage source amplifier must flow through the feedback resistor is the virtual ground. In an ideal op-amp configuration, the voltage at the inverting and non-inverting terminals are the same, creating a virtual ground at the op-amp input. Thus, any current through the input resistor must flow through the feedback resistor, reinforcing the concept of virtual ground. The other options listed are not directly related to this concept.

What Concept Is Reinforced by Noting That All of the Input