... figure.

In actuality, the op-amp $V_{\text{ground}}$ is slightly ambiguous until some sort of feedback is established. Another one of the op-amp's undrawn inputs can be used to adjust that value to agree exactly with some other reference voltage. This would allow, for example, adjusting the output voltage of your 101$\times$ amplifier to zero when the amplifier input voltage is zero.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... all.

The frequency at which a significant decline in $G$ sets in is different for different models of op-amp. However, there are always engineering trade-offs, and better high frequency response is not always the sole desideratum; in some cases it is actually undesirable.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

....

In contrast to all the previous real-world modifications to ideal behavior explored in this quiz, modern designs have made this one pretty irrelevant. In particular, your op-amp has $R_{\text{in}}\sim 10^{12}\Omega$.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... 17

Following long established tradition, we escape to the realm of Fantasy & Science Fiction to elucidate issues in Special Relativity.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... frame.

In Bevis' rest frame, Merlin and the ground itself approach Bevis at speed $v'$ where
$v'=(c^2/v)\{1-[1-(v/c)^2]^{1/2}\}$.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.