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# Can you "Daisy Chain" resistors? Answered

Can you chain together multiple resistors to add up their ohms into a larger amount.

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## 6 Replies

www.electronics2000.co.uk/calc/series-parallel-resistor-calculator.php is an online resistance calculator for series and parallel.

seandogue (author)2010-03-19

Yes. This is what we can a "series" connection in electronics, when they (resistors, capacitors, or whatever) are linked end to end.

cvianna1 (author)2010-03-18

Yes you can but you also have to be careful of the amount of power you are pumping through them. Resistance x current = heat.

steveastrouk (author)2010-03-19

Resistance X Current2 = heat

Jack A Lopez (author)2010-03-19

Yes.  Resistances add, for resistances wired in series.  For resistors wired in parallel, conductances add, where "conductance" is the inverse of resistance.
( Γ = 1/R)
See:
http://en.wikipedia.org/wiki/Resistor#Series_and_parallel_resistors

Example:  A 220 ohm resistor and a 470 ohm resistor are wired in series.  The combined resistance of these is 220+470 = 690 ohm.

Suppose these same resistors are wired in parallel. The combined resistance will then be 1/ (1/220 + 1/470) = 149.86 ohm

Bigev (author)2010-03-18

Yes. It is called putting them in series. (see fig. 1) And the resistive values add together. A + B + C
fig. 1)  - - -      (one minus sign = one resistor)

There is another configuration called parallel(see fig. 2) and the resistive values add inversely. 1/A + 1/B + 1/C
fig. 2) -
-
-

Additionally, there are more rules to deal with when it comes to power dissipation, amperage handling and such.