Start with the magnetic field made by current, then use that same field to explain forces on moving charges and current-carrying wires.
Use this topic when you want the bounded magnetic branch before induction and field synthesis widen the story. The page starts with field direction around current, then keeps that same B-field in view while moving charges and current segments respond to it.
Best first concepts
The topic page keeps these starts in their own compact row so the first screen is about orientation and next action, not stacked feature cards.
See how current direction, wire spacing, distance, and superposition set the magnetic field around one or two long straight wires, with the stage arrows and scan graphs tied to the same live source pattern.
Fields around current
Strong first stop for getting into this topic without scanning the whole library.
Launch one moving charge through a uniform magnetic field, compare it with a same-direction current segment, and connect force direction, curvature, and current-based force on one bounded live stage.
Magnetic force and motion
Strong first stop for getting into this topic without scanning the whole library.
Specific learning goals
These goal cards stay authored and transparent. They reuse the current topic page, starter tracks, guided collections, concept bundles, and progress cues instead of adding a separate recommendation system on top of this branch.
Use the electricity route, the existing electricity-to-magnetism bridge collection, and the magnetic starter track so the transition into electromagnetism stays bounded and transparent.
Primary move
Start Electricity
Electricity is the authored prerequisite for Magnetism. Electric Fields opens this track and sets up the rest of the path. Nothing is hard-gated here; this is simply the authored prep path.
Entry diagnostic
Start from the opening step
No saved diagnostic checks are available yet, so the opening step is still the best entry into the collection.
Reuses the guided collection entry for Electricity to Magnetism Bridge, with 0 of 2 probes already ready.
Recommended prep
Electricity is the authored prep route for Prepare for the electromagnetism branch. Nothing is hard-gated here; this is simply the intended setup path.
No saved progress yet inside Circuits.
Reopen the electricity track in recap mode is the next guided collection step.
Magnetic Fields is the next best step inside Magnetism.
No saved progress yet for Maxwell's Equations Synthesis.
Grouped concept overview
Each group is authored in the topic catalog, but the actual concepts, progress badges, and track cues still come from the canonical concept metadata and shared progress model.
Group 01
Start with the field pattern around current-carrying wires so direction stays visual instead of mnemonic-only.
Group 02
Then reuse the same magnetic field to compare forces on moving charges and current-carrying segments.