Electric Circuits 8th Edition 40

Electric Circuits 8th Edition 40 - 76 objective -Know a ndu...

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76 objective 3-Know and use the definitions ofpower and energyt Objective 4-Be abte to use the passive sign 1.5 Assume that a 20 V voltage drop occurs across an clcmcnt from tcrminal2 to lcrninal l and that a curcnt of4 A entcrs tcminal2 a) SpeciJy the values of d and t for the polarity ret<fence. shoqn in rig. 1.6(r) (J . b) State whether the circuit inside the box is absorbhg or delivering po$'er. c) How much power is the circuit absorbing'? Answen (a) Circuit 1.6(a):r, = 20V,t: 4A; circuii 1.6(b): 1] : 20V,i = 4A; circujt 1.6(c):c = 20V,t = 4A: circuit 1.6(d):0 : 20 V. t : 4 A; (b) absorbing; (c) 80 w: 1,6 Assume that the voltage at the terminals ofthe element in Fig. 1.5 corresponding to the currcnt in Assessnent Problem 1.3 is Calculatc thc total cncrgy (injoulet dclivered lo the circuit clement.
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This note was uploaded on 07/05/2010 for the course EE 100 taught by Professor Boser during the Spring '07 term at University of California, Berkeley.

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