ELE100 - Electricity Fundamentals

Subject Title
Electricity Fundamentals

Subject Description
Students are first introduced to the basic quantities voltage, electromotive force, charge, current and resistance. They then study Ohm's law and its application to series, parallel and series-parallel resistive DC networks. More general methods for the solution of resistive DC networks, i.e. mesh analysis and nodal analysis, are then covered. The principle of superposition, Thevenin's theorem, Norton's theorem and the maximum power transfer theorem complete the study of DC resistive networks. The electrical properties of capacitors and inductors and their effect on simple resistive networks with DC inputs are then considered. The course finishes with a discussion of the properties of AC voltage, current and impedance and the application of mesh analysis, nodal analysis and network theorems to series, parallel and series-parallel R-L-C networks with sinusoidal inputs. The resonant frequency and bandwidth of such networks are also calculated. Topics of special interest to aviation students are discussed where appropriate.

Credit Status
One Credit

Learning Outcomes
Upon successful completion of this subject the student will be able to:

1. Solve series, parallel and series-parallel DC and AC networks using Ohm's law, Kirchhoff's voltage law, Kirchhoff's current law, the systematic methods of mesh and nodal analysis using the principles of superposition and Thevenin's theorem
2. Calculate the transient current/voltage across a charging /discharging capacitors and inductors.
3. Calculate the frequency, period, phase, rms/peak/peak-to-peak values of sinusoidal AC voltage or current.
4. Write down the complex impedance of resistors, capacitors and inductors and calculate the total impedance of series-parallel combinations of these devices.
5. Solve circuits with sinusoidal voltage and/or current sources and which contain combinations of resistive, capacitive and inductive impedances. Acceptable solutions must utilize the systematic techniques of mesh and nodal analysis with supporting analytical tools of Ohm's Law, Kirchhoff's, superposition and Thevenin's theorem to solve such networks.
6. Calculate the resonant frequency and bandwidth conditions of R-L-C circuits with sinusoidal voltage and current sources. 

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