1. 1 EENG224 Problem 9.32 What value of  will cause the forced response vo in the Figure to be zero? if 100 rad/s

2. 2 EENG224 Problem 9.46 If i s = 5 cos (10t + 40  ) A in the circuit in the Figure, find i o.

3. 3 EENG224 Problem 9.55 Find Z in the network, given that Vo = 4  0  V

4. 4 EENG224 Problem 9.66 For the circuit in the Figure, calculate Z T and V ab.

5. 5 EENG224 Problem 9.79 (a)Calculate the phase shift of the circuit. (b)State whether the phase shift is leading or lagging. (c)Determine the magnitude of the output when the input is 120 V.

6. 6 EENG224 Problem 9.79

7. 7 EENG224 Problem 9.84 The ac bridge shown is known as a Maxwell bridge and is used for accurate measurement of inductance and resistance of a coil in terms of a standard capacitance C s. Show that when the bridge is balanced, L x = R 2 R 3 C s and Find L x and R x for R 1 = 40 k , R 2 = 1.6 k , R 3 = 4 k , and C s = 0.45  F

8. 8 EENG224 Problem 9.84

9. 9 EENG224 Problem 9.90 An industrial coil is modeled as a series combination of an inductance L and resistance R, as shown in Fig. 9.90. Since an ac voltmeter measures only the magnitude of a sinusoid, the following measurements are taken at 60 Hz when the circuit operates in the steady state: Use these measurements to determine the values of L and R.

10. 10 EENG224 Problem 9.90