Question

What are characteristics of ac and dc voltage of opamp?

Answer 1

Ac-Alternating current this changes direction periodically

Answer 2

DC and AC characteristics of op amp

AC Characteristics: For small signal sinusoidal ac applications the ac characteristics such as frequency response and slew rate are to be considered. ... With dc signal its gain should remain the same 90dB through audio and onto high radio frequency. But practically op-amp gain decreases at high frequency.