Passive elements are incapable of producing gain, they only attenuate. Examples are resistors, capacitors, and inductors.What are Active and Passive circuit elements?
That is true. There are some devices that don't fit neatly into one of the two categories. I don't think there is a category for devices that are neither strictly active nor strictly passive. If there is I can't remember what it was called. I was trying to keep things simple for the TS. (Disparaging remark removed by moderator.)Diodes don't generate gain, but are still generally considered active devices.
So then a vacuum-tube (valve) rectifier is a passive device?This thread is instructive: https://forum.allaboutcircuits.com/threads/how-diode-is-passive-component.121507/
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