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In this video I will explain when 2 resistors are connected in parallel the current, or charges, will have a choice to either flow through R1 or R2. It has more than one path. The equivalent, or total, resistance is 1/R(total)=1/R1+1/R2 or R(total)=(R1R2)/(R1+R2).
Next video in this series can be seen at:
https://youtu.be/JK4pvWTsye8