Voltage divider circuit : How to build a simple voltage divider using resistors or a potentiometer.

[@ElectricalEngineeringApp]

Thanks for this practical

[@edwardreichard3852]

If you keep doing more basic electronics videos I will watch

[@squigglyline2813]

Yea, me too.

[@edwardreichard3852]

Keep up with more videos please

[@elektron2kim666]

The load can contain a divider as well which throws out the numbers. For some new to this they must understand "a buffer" made from an Op-amp. It's a complicated trap to build on that beginning circuit without knowing "the buffer."

[@kennmossman8701]

the rule of thumb is to have the resistor ten times lower than the 'load' resistance. A BJT in CC configuration is often used as a buffer; High Zin and low Zout

[@memerogers2638]

Can you explain why your meter tests used two different polarities? Is that why second dc check showed a negative voltage? Confused about negative vs positive probe placement you used for the measurement. Thanks ( will subscribe if explained ) :)

[@TricksAndTechs130]

I wasn't really concerned about the polarity of the battery when I connected it to the resistors because the polarity of the battery doesn't affect the voltage drop across the resistors. My multimeter showed negative voltages in the circuit with two resistors because I connected the battery on the power supply rail in reverse . But in the circuits with three resistors and the one with the potentiometer, I connected the battery on the power rail in the right direction ,so my multimeter showed positive voltages. Hope you understood. Thanks for pointing out that.

[@kennmossman8701]

polarity is relative.....newbies have the idea its absolute here polarity is not important/relevant

[@kennmossman8701]

polarity is relative.......for example, if you look at the symbol of a NPN transistor it might show a positive sign at the Collector and a mins sign at the Emitter. But that does not mean an actual negative voltage at the Emitter - just a lower voltage than the Collector.

[@zoeyzhang9866]

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