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Hi everyone (help with schematic exercise)

A

abdelhalim uja

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Hi everyone, please I need someone to help me with solving this problem .
thank you for your consideration
 
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With low Ω the light dependent resistor pulls the PNP base high, with the effect of turning off the PNP.

With LDR high Ω it permits potentiometer resistance to pull the base of PNP low, thus turning it On.
 
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