1 Figure 2.7 shows an example of a series-parallel circuit. To find
the combined resistance R, first find the value of the parallel
combination R
2
and /?
3
.
Combined resistance = -
R2R3
Ri + R3
220 x 330
220 + 330
72 600
550
132R
R
2
680 R
220 R
*3
*4
820 R
330 R
—R—
Figure
2.7
The circuit shown in Figure 2.8 is therefore equivalent to the
circuit in Figure 2.7, and the total resistance is
R = 680 + 132 + 820
= 1632 =
1.632k
= 1K632
680 R 132 R
820 R
Figure
2.8
10
PRINT "PROG 23"
20
PRINT "THIS PROGRAM COMPUTES R
30
INPUT "ENTER THE VALUE OF Rl"
40
INPUT "ENTER THE VALUE OF R2"
50
INPUT "ENTER THE
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