Page 70 - Schaum's Outline of Theory and Problems of Electric Circuits

ANALYSIS METHODS
CHAP. 4]

Fig. 4-39 59

4.27 Use the node voltage method to obtain V o:c: and I s:c: at the terminals ab of the network shown in Fig. 4-
40. Consider a positive with respect to b. Ans: 11:2V; 7:37 A

Fig. 4-40

4.28 Use network reduction to obtain the current in each of the resistors in the circuit shown in Fig. 4-41.
Ans. In the 2.45-
resistor, 3.10 A; 6.7
, 0.855 A; 10.0
, 0.466 A; 12.0
, 0.389 A; 17.47
, 0.595 A;
6.30
, 1.65 A

Fig. 4-41

4.29 Both ammeters in the circuit shown in Fig. 4-42 indicate 1.70 A. If the source supplies 300 W to the circuit,
find R 1 and R 2 . Ans: 23:9
; 443:0

Fig. 4-42