Electric field of charges
Electric field of charges is an interactive experiment in Electric & Magnetic Fields, a free simulation from StudyFi Lab that runs right in your browser.
Every charge creates a field of strength E = k·Q/r² that points away from a positive charge and towards a negative one. The fields of several charges add up as vectors (superposition). Field lines start on positive charges and end on negative ones; the dashed equipotentials cross them at right angles. A test charge q feels the force F = q·E.
Try this: Choose the like pair and move the test charge exactly halfway between them — the force drops to zero.
Frequently asked questions
What does the “Electric field of charges” experiment show?
Every charge creates a field of strength E = k·Q/r² that points away from a positive charge and towards a negative one. The fields of several charges add up as vectors (superposition). Field lines start on positive charges and end on negative ones; the dashed equipotentials cross them at right angles. A test charge q feels the force F = q·E.
How do I try “Electric field of charges”?
Choose the like pair and move the test charge exactly halfway between them — the force drops to zero.
Studying for a test?
Upload your notes and StudyFi turns them into flashcards, tests and podcasts.