Electric fields, force and potential

What this note covers

1. Field, force and a positive test charge
2. Superposition distinguishes zero field from zero potential
3. Potential difference connects field work to energy
4. Parallel plates connect a spatial gradient to field strength
5. Charged-particle motion uses force and kinematics together
6. Design and interpret field measurements without circular reasoning

6 sections · 10 key terms & formulas · 6 common mistakes