The Videos and Power Point presentations (PPTs) with animations listed below for all the chapters and a few applications will serve as a teaching and learning aid to topics of Electricity and Magnetism and the theory and operation of electric and electronic circuits for students pursuing Degrees in Science and Engineering. The theory and visualizations discussed in the videos and PPTs use a unified approach to electrostatics and circuits.
Care has been taken to ensure that the concepts are presented accurately so that they complement the theoretical ideas in the text and afford visualizations of various circuit processes described in the textbook.
Chapter 1 Part 1, Surface Charges and Conduction Processes (with animations) – File size 6 MB
Download
Nature of the electric field; types of potential energy; electrostatic potential energy; conversion of energy; visualizing the electric field at points in space; potential energy of electric fields; charge conservation and neutrality; dipoles; atomic and molecular dipoles; neutral atoms; visualizing a conductor and neutrality in metals; metallic structures; potentials in conductors and Seeing atoms.
Chapter 1 Part 2, Surface Charges and Conduction Processes (with animations) – File size 497 KB
Download
Effects of the electric field; polarization of atoms; electric field in metals and dielectrics; the induced dipole.
Chapter 1 Part 3, Surface Charges and Conduction Processes (with animations) – File size 1.5 MB
Download
Current; Conductors, Resistors; Action of a battery; Surfaces charges and conduction process; electric field inside metallic wires and current; The Drude Model and the Drift Speed of electrons; Mechanical battery simulates the action of a chemical battery; Visualizing current; Working definition of current.
Chapter 2, Capacitors in Circuits (with animations) – File size 4.5 MB
Download
Charging and discharging capacitors; Visualizing the accumulation of charges on capacitor plates; Applying a pulse input and sinusoidal voltage to a capacitor and a capacitor-resistor combination; What is voltage?; Conservative and non-conservative fields; Visualizing voltage and Working Definition of Voltage; Capacitance of a single conductor and of the earth; Average electric field inside matter, conductors and dielectrics; Introduction to magnetic fields.
Chapter 3, The Principle of Superposition in Circuit Processes (with animations) – File size 2.3 MB
Download
Discharge of a charged capacitor; A DC voltage applied to a charged capacitor and resistor; Applying a sinusoidal voltage to a charged capacitor and resistor; sinusoidal voltage superimposed on a dc voltage; coupling ac signals to a common-emitter amplifier.
Chapter 4, Electrical Energy (with animations) – File size 2.4 MB
Download
Where is the electrical energy?; Is electric energy carried by individual electrons?; Real burden of signal and energy transfer; Energy of a two-charge system; Energy in a circuit; Energy of electric and magnetic fields.
Chapter 5, Faraday’s Law and Inductors in circuits (with animations) – File size 5.6 MB
Download
The Biot-Savart Law; Magneto-motive force and Magnetic Field strength; Faraday’s Law; Solenoids and Inductors; Curly electric fields; Conservative and Non-conservative fields; Current in an inductive circuit to sinusoidal voltage input of various frequencies; current lagging the voltage in an inductor; sinusoidal voltage input to an L-R combination; currents without a voltage; producing high voltages using inductors; Seeing atoms.
Chapter 6, Magnetic Forces and Electrodynamic theories (with animations) – File size 6.5 MB
Download
Magnetic forces on a moving charge; Magnetic force on a current carrying wire; Magnetic forces do no work; Hall effect phenomenon and who does the work when a current loop in a magnetic field suspends a mass; Action-at-a-distance vs. Aether theories; Birth of Classical Electrodynamics.
Chapter 7, Motional emf and Generators (with animations) – File size 2.3 MB
Download
The magnetic field; Faraday’s Law; Faraday’s Law applied to stationary coupled coils; Faraday’s Law applied to moving coils; Motional emf; Generating emf in rotating machines; Unidirectional emf; Load of a Generator; Microphones; Energy conservation in Generators.
Chapter 8, Magnetic Moments, Motors and Loads (with animations) – File size 3.8 MB
Download
Potential energy of magnetic moment; ; Motor construction and mounting; Magnetic forces on magnetic moment; Quantitative Torque; Rotation and Torque production in motors; Motor Mounting; Load Torque; Motor Current and Back emf; Motor Torque and Load Torque; Motor Selection; Start to Steady-state; Energy converted by Motors; How do invisible lines of force carry momentum and energy? Magnetism as a relativistic effect.
Chapter 9, PN Junctions, Diodes and Ohmic Contacts (with animations) – File size 2.9 MB
Download
Role of surface charges in operation of diodes; pn junction fabrication and formation of the transition (depletion) region; a diode in forward bias; potential and kinetic energies of electrons; a diode in reverse bias; a diode as a rectifier; nonrectifying or ohmic contacts at the metal to semiconductor (n-type and p-type) material of a diode; peak inverse voltage ratings of diodes.
Chapter 10, Voltages and Currents in Antennas (with animations) – File size 1.2 MB
Download
Standing wave of antenna voltage and current; Receiving Antenna.
Regulated DC Power Supply (using a Unified approach to Electrostatics and Circuits) – Part 1 (with animations) - Filesize 2.2 MB
Download
Construction and Operation of a Step-down transformer; AC to DC rectification-Bridge rectifier, Capacitor Filter, Unregulated Voltage
Regulated DC Power Supply (using a Unified approach to Electrostatics and Circuits) – Part 2 (with animations) - Filesize 1.5 MB
Download
Regulated Power Supply, Series-pass Transistor operation, controlling the voltage drop across the series pass transistor, Regulator operation; speed of correction by the voltage regulator; IC fixed voltage regulator.
Basic Action of a Differential Amplifier-Heart of the Opamp (using a Unified approach to Electrostatics and Circuits) – Part 1 (with animations) – File size 1.1 MB
Download
Differential-mode and Common-mode currents; Principle of U-Tube Manometer (analogous action of a differential amplifier); Differential Amplifiers – Operating Principle.
Basic Action of a Differential Amplifier-Heart of the Opamp (using a Unified approach to Electrostatics and Circuits) – Part 2 (with animations) - Filesize 1.8 MB
Download
Development of Differential Amplifier schemes; Differential-mode and Common-mode Action; Rejection of Common-Mode signals, Enhancements to Basic Scheme.
Transformer-coupled Audio Power Amplifiers (with animations) – File size 4.7 MB
Download
Drawback of connecting a load (a loudspeaker coil) directly to the collector of a transistor amplifier; Impedance mismatch and use of a transformer to match loads with transistor collector outputs; Construction and operation of Audio transformers; Reflected impedance of a transformer; Loudspeaker principle of operation; Impedance matching and Maximum Power Transfer; Determining turns ratio of an audio transformer for a transistorized Class A power amplifier.
