QUEENSBOROUGH COMMUNITY COLLEGE
Department of Engineering Technology
ET 110 Lab 14: Series R-C and R-L-C Circuits with a Sinusoidal Voltage Source
Prepared by John Buoncora
Objectives: 1) To construct a series R-C circuit with a sinusoidal voltage source.
2) To display the voltage waveform across each element on the oscilloscope.
3) To measure the peak-to-peak value, peak values, rms value, and period of each element voltage.
4) To calculate various theoretical values of the parameters and to verify the ac magnitude form of KVL
as applied to a series R-C circuit.
Equipment Required: Function Generator, Oscilloscope, DMM
Components Required:
Resistors (rated 1/2 Watt or above, 5% tolerance or better): 1.5 ??,
Capacitor (non-polarized): 0.01 µF (10000 pF)
Theoretical Discussion:
Refer to Figure-1 (Example Series R-L-C Circuit with a Sinusoidal Voltage Source) in the following
discussion. The circuit can be analyzed by finding the complex number impedance of each compo
he given frequency and then combining complex number impedances (using the equations for s
onnected impedances as appropriate) to find the total complex number impedance of the circu
an then calculate all of the phasor currents and voltages in the circuit, demonstrated in the ex
wis built in the laboratory.
