Concept — Force between point charges, inverse to the square of the distance.
Present in chapters
13
Linked atoms
37 linked atoms.
13 Forza di Coulomb ed elettrostatica
- Coulomb and Newton: two twins with an asymmetry
- From the torsion balance to Franklin’s lightning
- Electrostatic potential energy
- Electrostatic equilibrium
- Worked example — Charge on a spring, equilibrium and expansion
- Worked example — Three charges at the vertices of a triangle
- Contact forces are electromagnetic
- Coulomb’s law
- Superposition principle
- Problem — Charge of a sphere given the force
- Problem — Given F, find q
- Problem — Two charges in circular motion
- Problem — Two equal charges and a test charge
- Problem — Equilibrium of three charges on the axis
- Problem — Equilibrium on a line
- Problem — Fantasy physics: constant k doubled
- Problem — Coulomb force in the hydrogen atom
- Problem — Resultant force on three charges
- Problem — Force between +2 and -3 microcoulomb charges
- Problem — Force between two 1 microcoulomb charges
- Problem — Force between two charged balls
- Problem — Force between two spheres with the same charge
- Problem — Fraction of electrons to transfer
- Problem — Ranking Coulomb forces (pairs A-D)
- Problem — Ranking Coulomb forces (identical pairs)
- Problem — Ranking three pairs of charges
- Problem — Ratio between gravitational and Coulomb force
- Problem — Challenge: equilibrium of three aligned charges
- Problem — Fermi estimate: force between two electrons
14 Campo elettrico e potenziale
- Field of three charges in series
- Field of a point charge at 9 cm
- What is the electric field?
- Drill: distance for a given field
- Fantasy physics: Coulomb 1 over r cubed
- Work to separate two charges
- Ranking the field for various configurations