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Unformatted text preview: rr grves-ol + i"Rr + irn2 + irR3 + j.Rj + lrR5 + trn6 + irRT:0, (3.2) z ' . = t " ( R 1 + R 2 + & + & + R s + R 6 + R ? ) . (3.3) h g f e Figure 3.2 A Series resistors with a sjngte unkno\i/n The significance of Eq.3.3 for calculating ir is that the seven resistors can be replaced by a single resistor whose numeiical value is the sum of the individual resistors. that is. R e q = R 1 + R 2 + R 3 + R 4 + R 5 + R 6 + R 7 \3.4) and h Figure 3.3 A A simplified version of the cjrcujt shown in Fig.3.2. (3.5) Thus we can redraw Fig.3.2 as sho$n in Fig.3.3. In general, if tr resistors a.re connected in series, the equivalenl sircle re.islor has a resrstance equal lo lhe sum ot lhe & re,i.rancir. or (3.6) Note that the resistanc of the equivalent resistor is always larset than !har ot lhe largcsl resi.tor in rhe series conneclion. Combining resistoc in series >...
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- Spring '07