Electrostatics
Coulomb's law, electric fields and potential, and charged particles accelerated or held in place by fields.
Problems
- Force Between Two Small Charges
- The Electric Force Alone
- Size of the Electric Force
- Force After Touching
- Opposite Charges Touch
- Equal Charges at the Ends
- A Closer Second Charge
- Sharing Charge Through a Wire
- Balanced in the Middle
- Tension in Each String
- One Charge Four Times the Other
- Nearly Equal Charges
- Twice as Far Apart
- No Force on the End Charge
- Two Charged Spheres on Strings
- Tension in a Charged Pendulum
- Zero Net Force on the Middle Charge
- Touch, Then Pull Apart
- Where Does It Balance?
- Doubling the Charges
- A Far Charge
- Three Spheres, Two Contacts
- Doubling Both Charges
- From Attraction to Repulsion
- Two Like Charges
- Acceleration in the Gap
- Another Floating Charge
- A Charge Floating Between Plates
- Arrival Speed
- Which Plate Is Positive?
- Bigger Charges, Further Apart
- Field Between Opposite Charges
- Crossing the Gap
- Potential at the Midpoint
- Four Times the Voltage
- Double the Voltage
- Kinetic Energy from a Field
- Along an Equipotential
- Speed in Numbers
- Just Two Charges
- Moving to a Lower Potential
- Potential Difference from Work
- Speed After Acceleration Through V
- Work Done by the Field
- An Electron Climbing the Potential
- Three Charges on a Triangle
- Quadruple the Voltage
- Work Through 6 V
- Four Charges on a Square
- Comparing Work Between Equipotentials
- Alpha Particle Versus Proton
- Bringing in the Third Charge
- Highest Potential
- How Fast Does It Go?