Isn't conventional current supposed to go from high potential to low potential ? If yes, then why this rule is not respected in opamp using AC?
The rule that conventional current is always along the potential gradient applies only to purely resistive components. Capacitors can have current in both direction regardless of the instantaneous DC voltage.
While the current through a resistor a proportial to its voltage, the current through a cap is not proportial to its voltage, but instead to its dV/dt.
So when you add reactive components to your circuit, you can see this &quot;rule&quot; violated