Experiment No.6 R-C ac Circuit Objective: To study the characteristics of ac resistor-capacitor (R-C) circuit. Theory:...
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Experiment No.6 R-C ac Circuit Objective: To study the characteristics of ac resistor-capacitor (R-C) circuit. Theory: The R-C ac circuit composes of two elements, resistor (R) and capacitor (C). These two elements are either connected in series (or in parallel) depending on nature of application under study. In the R-C ac circuit, it is known that the current leads the voltage by a phase difference angle ( 8 or +). The value of this angle zero and 1/2 and can be determined by one of the three method which have been mentioned in exp5. Procedure: 1- Connect an R-C series ac circuit according to the following block diagram. Osc. Chl 10Vpp sine Wave generator Department of Electronic and Communications f (Hz) (IT), MA (VR), V (Ve), V (VT) V t (-usec) 01 (-deg) 02 (-deg) 82002 Resistor 2- Power on the instruments and write-down your measurements as shown in following table (assume phase angle of current is zero). 7 polar ZT rect. Osc. Ch2 500 Probe 3- Calculate the value of phase difference angles 81 and 82 where 81=2rft and 82-tan (VL/VR) for each value of frequency. 4- Calculate the circuit total impedance in polar and rectangular forms for each value of frequency 700 800 1000 1200 1400 1600 1800 2000 2200 0.1uF Capacitor 5- Plot on a graph paper Vr and I, for f-500Hz. 6- Repeat steps 1 to 4 for R-C parallel circuit. Electrical Circuits Laboratory (II) ============== Discussion 1- Plot on a graph paper between the frequency and phase difference angle. 2- Draw on a graph paper the phasor diagram for the case f=500Hz (choose a drawing scale 1cm for each 1 volt). 3- Are IT, VR and V₁. increasing or decreasing with the frequency f?Why?. 4- What should be the phase difference between Vc and VR? 5- Repeat the discussion for R-C parallel circuit. Experiment No.6 R-C ac Circuit Objective: To study the characteristics of ac resistor-capacitor (R-C) circuit. Theory: The R-C ac circuit composes of two elements, resistor (R) and capacitor (C). These two elements are either connected in series (or in parallel) depending on nature of application under study. In the R-C ac circuit, it is known that the current leads the voltage by a phase difference angle ( 8 or +). The value of this angle zero and 1/2 and can be determined by one of the three method which have been mentioned in exp5. Procedure: 1- Connect an R-C series ac circuit according to the following block diagram. Osc. Chl 10Vpp sine Wave generator Department of Electronic and Communications f (Hz) (IT), MA (VR), V (Ve), V (VT) V t (-usec) 01 (-deg) 02 (-deg) 82002 Resistor 2- Power on the instruments and write-down your measurements as shown in following table (assume phase angle of current is zero). 7 polar ZT rect. Osc. Ch2 500 Probe 3- Calculate the value of phase difference angles 81 and 82 where 81=2rft and 82-tan (VL/VR) for each value of frequency. 4- Calculate the circuit total impedance in polar and rectangular forms for each value of frequency 700 800 1000 1200 1400 1600 1800 2000 2200 0.1uF Capacitor 5- Plot on a graph paper Vr and I, for f-500Hz. 6- Repeat steps 1 to 4 for R-C parallel circuit. Electrical Circuits Laboratory (II) ============== Discussion 1- Plot on a graph paper between the frequency and phase difference angle. 2- Draw on a graph paper the phasor diagram for the case f=500Hz (choose a drawing scale 1cm for each 1 volt). 3- Are IT, VR and V₁. increasing or decreasing with the frequency f?Why?. 4- What should be the phase difference between Vc and VR? 5- Repeat the discussion for R-C parallel circuit.
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Accounting
ISBN: 978-0132569309
9th Edition
Authors: Charles T. Horngren, Walter T. Harrison Jr., M. Suzanne Oliv
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