muttley said:That seems long winded, why wouldn't you just add them together & divide by the amount or is it that you have kept it simple for me & having different value R's would give varying amounts each side depending on value
The above doesn't work if the resistors were 100 and 10 ohms, for example. You did catch on that if you have two identical resistors in parallel, the value is half of one of the resistors. The two resistors in parallel formula is useful sometimes, but it's just a reduction of the generic formula.
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