2. For the circuits of Fig. 5.72, the total resistance is speci- fied. Find the unknown resistances and the current I for each circuit. 12.6 kn R 10 n 12 0 30 V • R 60 V- R7 - 30 N |R7 = 60 kfM 45 kN 0.4 kn (b) E (a) R7 = 1.6 MN T 50 0 R1 0.2 ΜΟ 60 Ω 50 v 100 kM 56 kn 120 V- Rr- 220 1 R3 = R1 100 R (c) (d)
2. For the circuits of Fig. 5.72, the total resistance is speci- fied. Find the unknown resistances and the current I for each circuit. 12.6 kn R 10 n 12 0 30 V • R 60 V- R7 - 30 N |R7 = 60 kfM 45 kN 0.4 kn (b) E (a) R7 = 1.6 MN T 50 0 R1 0.2 ΜΟ 60 Ω 50 v 100 kM 56 kn 120 V- Rr- 220 1 R3 = R1 100 R (c) (d)
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Transcribed Image Text:2. For the circuits of Fig. 5.72, the total resistance is speci-
fied. Find the unknown resistances and the current I for
each circuit.
12.6 k)
R
10 N
12 Ω
30 V
R 60 V
Rr = 30 0
Rr = 60 k0
45 kN
0.4 kn
(a)
(b)
E
R7 = 1.6 MN
T 50 0
R1
60 Ω
0.2 MN
50 V
120 V
100 kn
56 kn
R7 = 220 0
R2 = R1
10 0
(c)
(d)
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