Skill — Vectorially sum contributions from multiple force or field sources.
Appears in chapters
13·14·16
Linked atoms
34 linked atoms.
13 Coulomb force and electrostatics
- Electrostatic equilibrium
- Worked example — Three charges at the vertices of a triangle
- Superposition principle
- Problem — Field at the centre of an equilateral triangle
- Problem — Two charges on a rod
- Problem — Two equal charges and a test charge
- Problem — Equilibrium of three charges on an axis
- Problem — Equilibrium on a straight line
- Problem — Resultant force on three charges
- Problem — Challenge: equilibrium of three aligned charges
14 Electric field and potential
- Field of three charges in a row
- Field on the axis of a ring
- Capacitance and charge of a capacitor
- Counting the lines: the field from the density
- From the graph to the sign of the charges
- From the potential to the charge
- Dielectric in a capacitor
- Cloud-to-ground potential difference
- Dipole and test charge
- Dipole in a uniform field
- Drill: distance for a given field
- Drill: potential at the midpoint
- Worked example — electric dipole on the axis
- Field lines never cross
- Potential of two charges at the midpoint
- Potential of a 10 nC charge
- Ranking the field for various configurations
- Ranking energy between capacitors
- True or false on field and potential