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1.5 Assume that a 20 V voltage drop occurs across an element from terminal 2 to terminal 1 and that a current of 4 A enters terminal 2. a) Specify the values of v and i for the polarity references shown in Fig. 1.6(a)-(d). b) State whether the circuit inside the box is absorbing or delivering power. c) How much power is the circuit absorbing? Answer: (a) Circuit 1.6(a): v = -20 V, i = -4 A; circuit 1.6(b): v = -20 V, i = 4 A; circuit 1.6(c): v = 20 V, i = -4 A; circuit 1.6(d): v = 20 V, i = 4 A; (b) absorbing; (c) 80 W.

1.5 Assume that a 20 V voltage drop occurs across an element from terminal 2 to terminal 1 and that a current of 4 A enters terminal 2. a) Specify the values of v and i for the polarity references shown in Fig. 1.6(a)-(d). b) State whether the circuit inside the box is absorbing or delivering power. c) How much power is the circuit absorbing? Answer: (a) Circuit 1.6(a): v = -20 V, i = -4 A; circuit 1.6(b): v = -20 V, i = 4 A; circuit 1.6(c): v = 20 V, i = -4 A; circuit 1.6(d): v = 20 V, i = 4 A; (b) absorbing; (c) 80 W.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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1.5 Assume that a 20 V voltage drop occurs across an element from terminal 2 to terminal 1 and that a current of 4 A enters terminal 2. a) Specify the values of v and i for the polarity references shown in Fig. 1.6(a)-(d). b) State whether the circuit inside the box is absorbing or delivering power. c) How much power is the circuit absorbing? Answer: (a) Circuit 1.6(a): v = -20 V, i = -4 A; circuit 1.6(b): v = -20 V, i = 4 A; circuit 1.6(c): v = 20 V, i = -4 A; circuit 1.6(d): v = 20 V, i = 4 A; (b) absorbing; (c) 80 W.
Transcribed Image Text:1.5 Assume that a 20 V voltage drop occurs across an element from terminal 2 to terminal 1 and that a current of 4 A enters terminal 2. a) Specify the values of v and i for the polarity references shown in Fig. 1.6(a)-(d). b) State whether the circuit inside the box is absorbing or delivering power. c) How much power is the circuit absorbing? Answer: (a) Circuit 1.6(a): v = -20 V, i = -4 A; circuit 1.6(b): v = -20 V, i = 4 A; circuit 1.6(c): v = 20 V, i = -4 A; circuit 1.6(d): v = 20 V, i = 4 A; (b) absorbing; (c) 80 W.
1.6 The voltage and current at the terminals of the circuit element in Fig 1.5 are zero for t < 0. For 1 2 0, they are v = 80,000te¬500r v. i = 15te 500r A, t 2 0; t 2 0.
Transcribed Image Text:1.6 The voltage and current at the terminals of the circuit element in Fig 1.5 are zero for t < 0. For 1 2 0, they are v = 80,000te¬500r v. i = 15te 500r A, t 2 0; t 2 0.
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