An op-amp will not work if
A) the supply voltages are less than ±5 V.
B) the input offset voltage is less than 100 mV.
C) either the inverting or noninverting input is not provided with an external current path.
D) the input offset current is less than 1 mA.

Question

Quizplus · Accepted Answer

Op-amps require an external path for bias currents at both the inverting and noninverting inputs to function properly. Without this path, the input bias currents can't flow, leading to improper operation of the op-amp. The other options (A, B, D) are not absolute conditions that prevent an op-amp from working.

An Op-Amp Will Not Work If