(b) The following voltage is applied to terminals A and B of the circuit shown below....

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(b) The following voltage is applied to terminals A and B of the circuit shown below. v = 110sinot + 22sin(3wt +50) +5.5sin(5@t - 35) Volts. Fundamental frequency = 50Hz i) ii) 25 100mH A B Calculate the value of capacitor, C, required to produce resonance at the third harmonic frequency (150Hz) With this value find an expression for the instantaneous current in the circuit. (c) Analyse the following circuits by applying the principles of AC theory to calculate the impedance of the following circuits when connected to a 50Hz sinusoidal ac supply. 100 Ohms L1 R1 1mH i. ii. V1 240V/50Hz C1 1F V1 100 Ohms 240V/50Hz R1 L1 1mH C1 1pF (d) Make a judgment about the expression generated in b(ii) and apply circuit theory to explain why the second term represents the majority of total current drawn. Then apply circuit theory to explain what happens at resonance in a parallel RLC circuit. (400 Words). (b) The following voltage is applied to terminals A and B of the circuit shown below. v = 110sinot + 22sin(3wt +50) +5.5sin(5@t - 35) Volts. Fundamental frequency = 50Hz i) ii) 25 100mH A B Calculate the value of capacitor, C, required to produce resonance at the third harmonic frequency (150Hz) With this value find an expression for the instantaneous current in the circuit. (c) Analyse the following circuits by applying the principles of AC theory to calculate the impedance of the following circuits when connected to a 50Hz sinusoidal ac supply. 100 Ohms L1 R1 1mH i. ii. V1 240V/50Hz C1 1F V1 100 Ohms 240V/50Hz R1 L1 1mH C1 1pF (d) Make a judgment about the expression generated in b(ii) and apply circuit theory to explain why the second term represents the majority of total current drawn. Then apply circuit theory to explain what happens at resonance in a parallel RLC circuit. (400 Words).