Tubbal_3713945_Roll 63_Task2 - Experiment 8: AC Circuit...

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Experiment 8: AC Circuit Analysis Faisel Tubbal, GIDP Tech Eng 1- Introduction The topological analysis of basic ac electric circuits containing impedances and ideal ac supplies This is a far more comprehensive form of Ohm's Law than what is in DC circuits (E=IR), just as impedance is a far more comprehensive expression of opposition to the flow of electrons than simple resistance is. Any resistance and any reactance, separately or in combination (series/parallel), can be and should be represented as single impedance. This practical part where we connect all the elements in breadboard and display the wave forms that generates from function generator and the out put of the circuit in the oscilloscope. This report will check the behaviour of the resistors and the capacitors by measuring the voltage across and the current through each one, also it will check the impedance of a series connection of resistor and capacitor when it supplied with ac voltage over given frequency range to determine it is variation with the frequency. 2- Impedance of Resistors . In this part sinusoidal voltage with 2.5 rms and 50Hz is generated by signal generator in order to supply the circuit shown in Figure (2.1) which is displayed in Ch1 of CRO (oscilloscope) (vi) and the voltage drop across and the current flow through the resistor (1.2K Ω) is displayed in Ch2 of CRO (Vr1) as shown in Figure (2.2) then from the wave forms the voltage across and the current through the 1.2KΩ resistor is recorded with the other details of the waveforms in table (2.1) . after this the frequency of the voltage supply is changed over range 50Hz to 10Khz as shown Table (2.2) to find out if the Impedance and the voltage across and current through the 1.2KΩ are affected by the frequency or not. In other wards to find out if the resistance (Impedance) is varied with frequency or not. From the figure 2.2 and from measurements in Table 2.2 it can be clearly seen that both current and voltage across the resistor are in phase and with the voltage supply as well so in resistors the voltage across and the current through any resistors are in phase (Phase angle=0). 2.1 – Results and Measurements from CRO
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This note was uploaded on 01/16/2011 for the course ECTE 1606 taught by Professor Parviz during the Three '10 term at University of Wollongong, Australia.

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Tubbal_3713945_Roll 63_Task2 - Experiment 8: AC Circuit...

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