Is it OK to write the resistance in parallel like this?

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Writing the equation for resistance in parallel is acceptable, and the method of using the reciprocal of the sum of the reciprocals is a common mnemonic. Pocket calculators simplify this process significantly compared to slide rules. It is important to ensure that the total resistance in a parallel network is always less than the smallest resistor present. The same formula for calculating total resistance can also be applied to inductors, while capacitors require a different approach. Overall, the discussion emphasizes the practicality and elegance of the parallel resistance formula.
TBert
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I am creating an equations sheet for electronics forumlas and am wondering if it is OK to write the equation for resistance in parallel like this:
33bnUFo.png
 
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TBert said:
I am creating an equations sheet for electronics forumlas and am wondering if it is OK to write the equation for resistance in parallel like this: View attachment 197492
Yes.
 
My memory rhyme was always "Reciprocal of the sum of the reciprocals"
which when pocket calculators came along in 1970's became quite handy.

Enter R,, press 1/x, press M+, repeat until all R's accounted for, press Recall Memory, press 1/x .

That's one place where a pocket calculator really outdoes a slide rule .

Your formula is much more elegant. Just make sure there's not a R0 !

have fun,.

old jim
 
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A bit off track but in // r's the total network R should always be smaller than the smallest resistor in ohms.

Also, a network has no P/S whereas a circuit has a power supply.

And again what Jimbo said... R total = the sum of the reciprocals, reciprocated. You can use the same formula for inductors as well, whereas capacitors you treat opposite.
 

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