Physics Demonstrations in Electricity & Magnetism: Part III

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Electromagnetic Induction
Probe one of the most fascinating phenomena in all of physics, electromagnetic induction, which shows the direct relationship between electric and magnetic fields. In a demonstration with moving magnets, see how the relative motion of a magnet and an electric conductor induces current in the conductor.
Magnetism
In this introduction to magnetism, discover that magnetic phenomena are really about electricity, since magnetism involves moving electric charge. Learn the right-hand rule for the direction of magnetic force. Also investigate how a current-carrying wire in a magnetic field is the principle behind electric motors.
Applications of Electromagnetic Induction
Survey some of the technologies that exploit electromagnetic induction: the electric generators that supply nearly all the world's electrical energy, transformers that step voltage up or down for different uses, airport metal detectors, microphones, electric guitars, and induction stovetops, among many other applications.
Physics Demonstrations in Electricity & Magnetism: Part II
Concepts Covered: Corona Discharge: Electronic Precipitator Electric Fields: Mapping of Force Field Electric Fields: Electromagnetic Shielding Electric Fields: Parallel Plate Capacitor Electric Fields: Energy Stored in a Capacitor Electrochemical Effects: Operation of a Battery Temperature and Resistance: Effect of Temperature Extremes on Conductivity Superconductivity: Zero Resistance and Meissner Effect
Physics Demonstrations in Electricity & Magnetism: Part I
Concepts Covered: Electrostatics: Interaction of Charge Electrostatics: Distribution of Charge on a Conductor Electrostatics: Induction of Charge Isolation of Charges: Kelvin Water Dropper Electrostatics: Coulomb's Law Corona Discharge: Detection of Electric Wind Momentum of an Electron: Momentum Imparted During Collision Corona Discharge: Lightning Model
Electric Current
Learn the definition of the unit of electric current, called the ampere, and how Ohm's law relates the current in common conductors to the voltage across the conductor and the conductor's resistance. Apply Ohm's law to a hard-starting car, and survey tips for handling electricity safely.
Physics Demonstrations in Mechanics: Part IV
Concepts Covered:
  • Fundamental Forces: Gravitational, Electromagnetic, Strong, and Weak Forces (Computer Animation)
  • Mass and Weight: Weightlessness during Free-fall
  • Newton's 2nd Law: Force and Acceleration of a Rocket Powered Car
  • Newton's 3rd Law: Action-Reaction Forces of a Liquid Nitrogen Cannon
  • Newton's 2nd and 3rd Laws: Helicopter Dynamics
  • Force Components: Perpendicular…
Electromagnetic Waves
Explore the remarkable insight of physicist James Clerk Maxwell in the 1860s that changing electric fields give rise to magnetic fields in the same way that changing magnetic fields produce electric fields. Together, these changing fields result in electromagnetic waves, one component of which is visible light.
Magnetic Energy
Study the phenomenon of self-inductance in a solenoid coil, finding that the magnetic field within the coil is a repository of magnetic energy, analogous to the electric energy stored in a capacitor. Close by comparing the complementary aspects of electricity and magnetism.
Electricity - Ultimate Energy Converter
Episode 4 of The Science of Energy
Discover what makes electricity such an attractive vehicle for energy. Learn how electricity can come from oil, coal, solar, and other forces, and how electricity travels through wires with the help of voltage. Also, examine recent advances that make it easier for us to choose where we source our electricity.
The Particle Zoo
By 1960 a myriad of seeming elementary particles had been discovered. Survey the standard model that restored order to this subatomic chaos, describing a universe whose fundamental particles include six quarks; the electron and two heavier cousins; elusive neutrinos; and force-carrying particles such as the photon.