How to set a minimum and maximum possible resistance for light dependent resistor LDR

Light dependent resistor resistance changes depending on how much light falls on them. The ones I have from basic electronics kits, range from almost 0Ω in bright enough light, and over 200 million Ω when it's very dark.

pages that use the diagram shown in the video.

Series resistance ads to the total resistance, thus preventing a low resistance than the series resistance, while still letting the LDR get to millions of ohms of resistance,

Parallel resistance means that no matter how much resistance the LDR meter gets to, the parallel resistor will pass current, thus equivalent resistance can never be higher than the lower value resistor.


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