D.2.18 (HL)—Equipotentials and electric fields Topic Practice
D.2.18 (HL)—Equipotentials and electric fields Topic Practice
Practise reading equipotential diagrams to infer field direction, particle motion and work done, including uniform fields and spherical cases.
How this is tested
- use an equipotential or field diagram to choose a charge's initial acceleration or velocity direction
- state from the diagram that field lines meet equipotential lines at 90 degrees to the surface
- apply W = qDeltaV on an equipotential diagram to decide if speed changes and by how much