Original post by Bonisile Kubheka
R1=5
r2=2
r2=2
Formula is (R1 x R2)/(R1 +R2) = 10/7 ohms
From https://kitronik.co.uk/blogs/resources/how-to-calculate-resistors-in-series-and-parallel
I am not a physics student
Note there is a different formula for 3 or more resistors in parallel
(edited 7 months ago)
Original post by Joinedup
For resistors in parallel the rule is
1/Requiv = 1/R1 + 1/R2 ...
So 1/(1/R1 + 1/R2)
1/Requiv = 1/R1 + 1/R2 ...
So 1/(1/R1 + 1/R2)
Thank you, this was more informative than that website
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