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Question 8

Gaokao comprehensive practice quiz · Deck: Gaokao essentials: original practice

Why does a static magnetic field do no work on a moving charged particle?

  1. Magnetic fields possess zero energy density.
  2. The magnetic Lorentz force is always perpendicular to the velocity vector.
  3. The charge of the particle dissipates inside magnetic field lines.
  4. Magnetic forces cancel with gravitational forces.

Source: Magnetic Forces and Fields, OpenStax University Physics Volume 2

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