University:
Swansea University
Course:
EG-086 | Engineering Science
Academic year:

2023
Views:

280

Pages:

10
Author:

Prince Sampson

1.25 Element B in the diagram in Fig. P1.25 supplies 72 W of power. Calculate V 3A + VA B – Figure P1.25 SOLUTION: A. 1.26 Element B in the diagram in Fig. P1.26 supplies 72 W of power. Calculate + 18 V B − Ix Figure P1.26 SOLUTION: I x. 1.27 (a) In Fig. P1.27 (a), P1 = 36 W. Is element 2 absorbing or supplying power, and how much? (b) In Fig. P1.27 (b), P2 = −48 W. Is element 1 absorbing or supplying power, and how much? + 1 12 V − + 2 6V − (a) Figure P1.27 SOLUTION: − 1 6V + + 2 24 V − (b) 1.28 Two elements are connected in series, as shown in Fig. P1.28. Element 1 supplies 24 W of power. Is element 2 absorbing or supplying power, and how much? + 1 3V − − 2 6V + Figure P1.28 SOLUTION: 1.29 Element 2 in Fig. P1.29 absorbed 32 W. Find the power absorbed or supplied by elements 1 and 3. 1 2 3 Figure P1.29 SOLUTION: − 4V + + 8V − + 12 V − 1.30 Choose Is such that the power absorbed by element 2 in Fig. P1.30 is 7 W. 4V + 1 + + 6V − − Is Figure P1.30 SOLUTION: 2 2V − 1.31 Find the power that is absorbed or supplied by the circuit elements in Fig. P1.31. + 6V − 1 2A + 20 V 2A − + − 14 V + − 2Ix 2A (a) Ix = 4 A + 8V 1 − + 16 V 4A − 4A (b) Figure P1.31 SOLUTION: 1.32 Find the power that is absorbed or supplied by the network elements in Fig. P1.32. Ix = 2 A + 8V 1 − 2A + − 12 V + − 2Ix 2A (a) 24 V −+ 2A + − + 2A 12 V 2 − 2A (b) SOLUTION: Ix = 2 A + 4Ix Figure P1.32 20 V − 1 1.33 Compute the power that is absorbed or supplied by the elements in the network in Fig. P1.33. Ix = 4 A + 12 V 1Ix − 1 −+ 2A 36 V + − Figure P1.33 SOLUTION: + 2 24 V − 2A + 3 28 V − 1.34 Find the power that is absorbed or supplied by element 2 in Fig. P1.34. 2A + 4V 1 2Vx − −+ + 12 V + − 2 2A Figure P1.34 SOLUTION: Vx −