this post was submitted on 27 Jan 2024
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My in laws gifted my kid this pretty cool RC car but it makes this awful music that’s REALLY loud. Can I wire a resistor in series on one of the speaker legs to turn the volume down, say 50%?

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[–] BakedCatboy@lemmy.ml 1 points 11 months ago (1 children)

I thought a voltage divider is 1 resistor in series and another in parallel? That way you have 2 resistors in series while the component in question sources it's voltage from in between the 2 resistors, dividing the voltage based on the proportion of the resistances of the 2 resistors. Kinda like dividing up a waterfall into 2 waterfalls of separate height that add up to the same total as the original waterfall, and then putting a turbine going from between the waterfalls to the bottom so you only get the lower waterfall's portion of the energy compared to the original waterfall's full height.

[–] buckykat@hexbear.net 1 points 11 months ago

The component in question, in this case the speaker, can be treated as the second resistor.