Overview

Indicative content includes:

• Introduction to Passive and Active Circuits; Resistance & Conductance; Ohm's Law; Voltage and Current Sources (Ideal and Practical); Independent and Dependent Sources; Passive sign convention; Kirchhoff's Laws; Voltage and Current Dividers. Introduction to A.C. Circuits: Sinusoidal Waveforms; Concept of Phasors and Phase Angle.

• Voltage and Current in A.C. Resistive Circuits, Power Waveform, RMS values; Voltage and Current in Inductive Circuits, Inductive Reactance; Introduction to j-Notation; Voltage and Current in Capacitive Circuits, Capacitive Reactance; Concepts of Impedance and Admittance; Analysis of Series and Parallel Resistive and Reactive Circuits. Power in A.C. Circuits.

• Resonant frequency, Q-factor and bandwidth for series and parallel resonant circuits.

• Use of Loop/Mesh Current Method, Node-Voltage Method and Superposition to analyse electric circuits. Use of Thévenin's and Norton's Theorems to obtain equivalent circuits.

• Electron energies, energy levels and electron energy bands.

• Drift velocity, mobility and conductivity. Energy bands and electrical conductivity in metals and intrinsic silicon. Impurity semiconductors. Temperature dependence of conductivity.

Learning Outcomes

• Analyse simple AC circuits that contain capacitors, inductors and resistors (C, L, R) and identify resonant circuits.

• Apply formal analysis techniques to electric circuits.

• Explain the theoretical physics that underpin the electronic properties of materials.

• Identify and describe simple DC circuits and theory.