Electric Charges and Fields — Class 12 ISC Physics revision notes
A 5-page visual revision sheet for Electric Charges and Fields, written for Class 12 ISC Physics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Electric Charges and Fields sheet covers
- Charge, and the three properties it has
- Coulomb's law and the field it defines
- force between point charges
- the constant
- in a medium
- electric field
- field of a point charge
- superposition
- Force between two point charges
- Field lines, and what they are allowed to do
- The electric dipole
- Dipole results worth having ready
- torque
- potential energy
- work to rotate
- axial field, far away
- equatorial field, far away
- Continuous charge distributions
- Electric flux and Gauss's law
- The three standard Gaussian results
- infinite line of charge
- infinite plane sheet
- two oppositely charged plates
- shell, outside
- shell, inside
- solid sphere, inside
- Choosing a Gaussian surface
- Conductors in an electrostatic field
- Where the charge collects on an irregular conductor
- Dielectrics, in outline
- The field of a charged ring, and where it peaks
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Physics chapter by chapter against your real exam dates and free hours, and when the plan reaches Electric Charges and Fields the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.