What is the input bias current and how do we fix it? Ideally an op-amp won't have any current flowing into its input pins because the input impedance is ideally very large, but in reality there is current. What does this affect?

Aaron Danner is a professor in the Department of Electrical and Computer Engineering at the National University of Singapore.
https://danner.group

Video filmed and edited by Cheryl Lim.
@randomcheryl