Sample Input Three-Row Scan - Electronic Circuits V: Front-End Conditioning and Gain Contracts Step by Step

Three sample-state rows show that the held value follows the input source exactly. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Two input volts capture two held volts

With the switch closed, a 2 volt input is the source of the same 2 volt held output.

V_{\text{held}}=V_{\text{in}}=2\ \text{V}

Four input volts capture four held volts

Only the source input changes. The capacitance stays 2 farads, and the held output becomes 4 volts.

V_{\text{held}}=V_{\text{in}}=4\ \text{V}

Six input volts capture six held volts

The third row confirms the proportional rule: sample state copies the 6 volt input into the held node.

V_{\text{held}}=V_{\text{in}}=6\ \text{V}