![operational amplifier - Are op-amp (LM324) power rails physically connected to their input terminals? - Electrical Engineering Stack Exchange operational amplifier - Are op-amp (LM324) power rails physically connected to their input terminals? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/kzFYu.png)
operational amplifier - Are op-amp (LM324) power rails physically connected to their input terminals? - Electrical Engineering Stack Exchange
![Over & Under Voltage protection circuit - ElecCircuit.com | Electronic circuit projects, Circuit, Electronics circuit Over & Under Voltage protection circuit - ElecCircuit.com | Electronic circuit projects, Circuit, Electronics circuit](https://i.pinimg.com/originals/1e/13/6b/1e136b81716224ee8e0ab1202f554d25.jpg)
Over & Under Voltage protection circuit - ElecCircuit.com | Electronic circuit projects, Circuit, Electronics circuit
![DC 0-72V 0-10A Adjustable Constant Voltage Constant Current Power Supply Module LM324 Electronic Load DIY Kits - AliExpress DC 0-72V 0-10A Adjustable Constant Voltage Constant Current Power Supply Module LM324 Electronic Load DIY Kits - AliExpress](https://ae01.alicdn.com/kf/S632ec70a3baa48b298d6303a70d88bf0h.jpg_640x640Q90.jpg_.webp)