Skip to content

Magnetic Fields and Forces (AP Physics C: E&M)

Advanced

Magnetic fields arise from moving charges and currents. At the AP Physics C level, the Biot-Savart law and Ampere s law are used to calculate B fields for wires, loops, solenoids, and toroids.

The Lorentz force on charged particles and current-carrying conductors, magnetic flux, and the force between parallel wires are central topics.

Practice a little. See where you stand.

Ready to practice?5 minutes. No pressure.

Explore your way

Choose a different way to engage with this topic — no grading, just richer thinking.

Explore your way — choose one:

More ways to explore
Explore with AI →
Curriculum alignment— Standards-aligned

Grade level

Grades 9-12College+

Learning objectives

  • Apply Biot-Savart law to calculate magnetic fields from current elements
  • Use Ampere s law for symmetric current distributions
  • Calculate forces on charged particles and current-carrying wires in magnetic fields
  • Determine magnetic flux through surfaces
  • Analyze force between parallel current-carrying wires
Magnetic Fields and Forces (AP Physics C: E&M) - Learn, Quiz & Study | PiqCue