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Frequency Response of Netwroks (Electronic Engineering)
Engineering and Construction
Pages 3 (753 words)
Frequency Response Networks Name Course Course code Tutor Date of submission The main objective of this experiment was to investigate how capacitive and inductive reactance’s vary with frequency, plot the frequency response of a simple RC filter, plot the variation of current with frequency in a series RLC circuit and determine the resonant frequency and Q factor and to evaluate simple band- pass and band-stop filters.
Current was determined by monitoring the voltage across 100 ? resistor. The CRO was used to record the current and voltage waveforms. The above procedure was repeated for the series connection of a resistor and inductor. Voltage across the inductor was measured at 100 Hz. The frequency response of the RC low-pass filter was measured over the frequency range 100 Hz to 100 kHz. At R = 1 k?, C = 0.01 µF, the attenuation at 15 to 20 frequencies were logarithmically recorded over this range. This procedure was repeated with R= 10 k?. The LF oscillator was connected to the RLC series circuit and with R=100 ? the voltage across the capacitor and inductor, and current through the circuit at frequencies between 1 kHz and 100 kHz determined by measuring the voltage across the series resistor. The band-pass filter circuit was constructed and voltages Vo and Vi measured over the range of frequencies 1kHz to 100 kHz. The band-stop filter circuit was also constructed and Vo and Vi again measured over the range of frequencies 1kHz to 100kHz. A Twin-T filter was then constructed with R1 = R2 = 100 ? and C1=C2=0.01µF. ...
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