80. The current through the 20-N resistor in Fig. 26-69 does not change whether the two switches S and S2 are both open or both 20 2 ww closed. Use this clue to determine the value of R S2 ww- 10 Ω the unknown resis- tance R. 50 2 FIGURE 26-69 ww Problem 80. V ww

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V=6.23731 V

 
80. The current through the 20-N resistor in Fig. 26-69 does not
change whether the
two switches S, and S2
are both open or both
20 2
ww
closed. Use this clue to
determine the value of
R
S2
ww-
10
Ω
the unknown resis-
tance R.
50 2
FIGURE 26-69
ww
Problem 80.
V
Transcribed Image Text:80. The current through the 20-N resistor in Fig. 26-69 does not change whether the two switches S, and S2 are both open or both 20 2 ww closed. Use this clue to determine the value of R S2 ww- 10 Ω the unknown resis- tance R. 50 2 FIGURE 26-69 ww Problem 80. V
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