ECE 201 - Hw 09 - F11

# ECE 201 - Hw 09 - F11 - Homework 9 Due Wednesday September...

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Homework 9 Due: Wednesday, September 14 1 (a) For the circuit of Figure 1, R 1 = 3 kΩ, R 2 = 15 kΩ, R 3 = 12 kΩ, I s = 100 mA and g m = 1 . 2 mS. Find I 1 and V x by writing two equations in the two unknowns I 1 and V x . The ﬁrst equation is the usual loop equation and the second determines the relationship of I 1 and V x . (b) Given your answer to (a), ﬁnd the equivalent resistance, R eq , seen by the inde- pendent source. (c) Find the power delivered by the dependent source. Figure 1: Model circuits for Problem 1. 1

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2 The circuit of Figure 2(a),(b) represents two non-ideal batteries V s 1 = 7 V and V s 2 = 8 V with internal resistances R 1 = 10 Ω and R 2 = 40 Ω (faulty connection) respectively connected in parallel to supply power to a load of R 3 = 40 Ω. The panels (a) and (b) of Figure 2 correspond to the same circuit redrawn with diﬀerent loop currents. The point of this problem is to verify that diﬀerent sets of independent
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ECE 201 - Hw 09 - F11 - Homework 9 Due Wednesday September...

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