ELT 121 - AC/DC Circuit Analysis
A one-semester algebra-based electric circuit analysis course for majors mainly in Electrical Engineering Technology, Mechanical Technology and Optical Technology, as well as others requiring an introduction to both DC and AC signal driven circuit analysis of series, parallel and series parallel resistive circuits and series RC circuits. Topics include: voltage, current, resistance, conductance, Ohm's law, Kirchoff's Voltage and Current laws, voltage and current dividers equations, power, capacitance, a brief introduction to inductance, RC time constant circuits, capacitive reactance and impedance, superposition, Thevenin, Norton, Theorems, computer analysis, and an introduction to troubleshooting. Lab teaches use of digital multimeters, analog VOM, power supplies, dual-trace oscilloscope, function generators, and an introduction to computer generated circuit analysis using Multisim, the concept of circuit loading and meter frequency limitations. Three class hours, four laboratory hours.
Prerequisite: High school algebra with some trigonometry or MTH 135. NOTE: Students with no trigonometry should consider taking MTH 164 concurrently.
Course Learning Outcomes
1. Understand and define basic electrical terms: such as resistance, voltage, current, conductance, short, open etc.
2. Analyze DC driven multi resistive circuits using circuit rules ,Laws and theories to find circuit equivalent resistance component resistance, circuit currents , voltages & power
3. Construct a circuit containing a DC or AC voltage source resistors, capacitors connected in series, parallel or series parallel from a schematic diagram.
4. Measure Resistance and Voltage given a live circuit and a DMM and use measurements to determine circuit current and other circuit parameters
5. Determine the ohmic value of a resistor, given its color coded marking, coded marking or stamped value and determine component minimum & maximum value limits .
6. Understand the basic operation of oscilloscope and use to duplicate measurements of voltage amplitude, period & DC content
7. Calculate and measure instantaneous voltages & currents, times and Time constant values.
8. Discover the use of circuit theorems of Thevenin and Superpositin in analysis of circuits.
9. Discover the use of the computer to analyze DC driven resistive circuits.
10. Discover the use of Rectangular and polar numbers in the analysis of in AC Sinusodal driven series RC circuit.
Course Offered Fall and Spring