Magnetism

  1. Magnetism and Magnetic Field Lines, An Explanation
  2. Why are Magnets Magnetic, An Explanation
  3. Magnetic Field from a Current Carrying Wire, An Explanation
  4. Magnetic Field from a Current Carrying Wire,  Calculations
  5. Magnetic Field from a Coil (Solenoid), An Explanation
  6. Magnetic Field from a Coil (Solenoid), Calculations
  7. Lorentz Force, Right Hand Rule, Direction of the Force on a Charged Particle
  8. Lorentz Force, Calculate Magnitude of the Force on a Charged Particle
  9. Force on a Current Carrying Wire
  10. Force Due to Parallel Current Carrying Wires, Currents in the Same Direction
  11. Force Due to Parallel Current Carrying Wires, Currents in the Opposite Directions
  12. Lorentz Force on a Charged Particle, Circular Path
  13. The Motor Principle

RC and RL Circuits

  1. RC Circuit Analysis No. 1
  2. RC Circuit Analysis No. 2
  3. RC Circuits No. 3, Charging and Discharging a Capacitor, with PhET Simulation
  4. RC Circuits No. 4, Time Constant, Voltage and Current for Charging a Capacitor
  5. RC Circuits No. 5, Charging a Capacitor, Voltage and Current, Worked Example
  6. RC Circuits No. 6, Time Constant, Voltage and Current for Discharging a Capacitor
  7. RC Circuits No. 7, Discharging a Capacitor, Voltage and Current, Worked Example
  1. RL Circuit Analysis No. 1, Voltages and Currents
  2. RL Circuit Analysis No. 2, Voltages and Currents
  3. RLC Circuit Analysis No. 3, Voltage, Current and Charge
  4. RL Circuits No. 4, Inductor Charging & Discharging, An Explanation, Part 1
  5. RL Circuits No. 5, Inductor Charging & Discharging, An Explanation, Part 2
  6. RL Circuits No. 6, Charging an Inductor, Time Constant, Voltage, Current, An Explanation
  7. RL Circuits No. 7, Charging an Inductor, Time Constant, Voltage, Current, Worked Example
  8. Comparing RC and RL Circuits, Voltage and Current

Gravitation

  1. Mass vs Weight, An Explanation
  2. Newton’s Law of Universal Gravitation, An Explanation with Examples
  3. Gravitation and Weight, Calculate Your Weight Two Different Ways
  4. Calculating the Acceleration Due to Gravity
  5. Calculating the Orbital Velocity of Satellite
  6. Calculating the Orbital Period of a Satellite
  7. Calculating the Orbital Height of a Satellite
  8. Geosynchronous vs. Geostationary Orbits
  9. Gravitational Potential Energy for Objects Far from Earth, An Explanation
  10. Gravitational Potential Energy at the Surface of the Earth
  11. Gravitational Potential Energy of an Object Orbiting the Earth
  12. Work Done to Lift an Object into Around the Earth
  13. Orbital Velocity at the Surface of the Earth
  14. Total Mechanical Energy of a Satellite Orbiting the Earth 
  15. Energy Needed to Put a Satellite into Geostationary Orbit
  16. Escape Velocity, An Explanation
  17. Gravitation and Conservation of Mechanical Energy