Basic Circuit Theory Chpter8 Problems 6 Find the output impedance of the network in Fig. 8-25 12gJ2092 Vr j39 7(a) Find the frequency-domain Norton equivalent of the network depicted in Fig. 8-26.(b) Give element values for one network that this norton equivalent(at =2000 rad/s) 0.5 200tA△20uF b Fig 8-26 For prob.7 8 Use superposition to find Ir in Fig. 8-27 10°A l0°V1∠Q。V ∠0°A 9 For the circuit of Fig 8-28 find the phase angle of the V and v graphically if k 90V and V,=150V D20V5080 Fig. 8-28 For prob. 9 10 Use phasors and nodal analysis on the circuit of Fig 8-29 to find V? A10∠Q°A 3Q 5/90 Fig. 8-29 For prob. 10. DaLian Maritime UniversityBasic Circuit Theory Chpter8 Problems 6 Find the output impedance of the network in Fig.8-25. + - 12 Ω 1 0.1 − j 3 Ω j 20 Ω 1 ' x v x v Fig. 8-25 For prob.6. 7 (a) Find the frequency-domain Norton equivalent of the network depicted in Fig.8-26. (b) Give element values for one network that this Norton equivalent (at ω =2000 rad/s). A a b i 20µF i 250Ω 200 t 20 2 cos 0 .5 8 Use superposition to find I x in Fig.8-27. • Fig. 8-26 For prob.7. - + - + 1 V / 0° − j1Ω 1Ω 1Ω j1Ω / 0°V / 0°A 1 1 1 I x • / 0°A 9 For the circuit of Fig.8-28 find the phase angle of the and graphically if = 90V and =150V. • Vx • Vy Vx Vy Fig. 8-27 For prob.8. + - + - - + - + 1 20/ 0°V V x • V y • 50 / 80°V 10 Use phasors and nodal analysis on the circuit of Fig.8-29 to find . • V2 Fig. 8-28 For prob.9. 3 Ω j 3 Ω − j5 Ω 6 Ω 2 • V I B • 5 / 90 ° A 10 / 0° A Fig. 8-29 For prob.10. DaLian Maritime University 2