Parallel Circuit

Topics in Covered Chapter
6
:
Rrfor Series-Parallel
6-1 Finding
Resistances
Strings Parallel
6-2:Resistance
in
6-3:Resistance
Banks Series in Banks Strings Series-Parallel
6-4:Resistance
and in @2ffi7 The McGrc*Hilt

Cwanies

Inc. All iskts rcm

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Covered In Chapf,er
6
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6-.[:FfndiftS for

Reslstan ces Serfes-Pcrsilie[
. Overviewof Series-Parallel
Circuits
. A series-parallel circuit,or combination circuit, and both connections. combines series parallel r Mostelectronic fall circuits intothiscategory. circuits typically are usedwhendifferent
Series-parallel
fromthe same voltage curent values required are and voltage source.
. Series form components a seriesstring. r Parallel form components a parallel bank. . Overview Series-Parallel
Circuits
of

in
There arethreebranches this

circuit sections

To findRrfor a series-parallel circuit, theseries add the resistances combine and parallel resistances. fn thisdiagram, and Rrare
R,
in series, and R, andRoare in parallel. R,
However, is not in serieswiththe parallel resistances: Resistances in serieshavethe samecurrent, in butthe current R, is equal to the sumof the branch currentsI, andln.

ff'l'=

s.$ kf}

&H

.
n.S!rt}

=
.fa=.1;*,1;9 &t+ I*

{#i
Fig. &1b. Schematicdiagram of a seriesparallel circuit.

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required for reproduction or dsday.

6--T:
Ff*ding ftuf*n rlces Series-Pcra[fe]
Reslsta
. F or F i g .6 - 1 b ,
. Theseries resistances are:
0.5ko+0.5ko: lkft
. Theparallel resistances are: lka I 2: 0. 5kQ
. Theseries parallel values thenadded the are for