The GRE Subject Test in Physics assesses knowledge and understanding of undergraduate-level physics concepts and principles.
Electromagnetism describes how electric and magnetic fields interact and influence matter. It's the science behind everything from lightning to your phone's screen.
Electromagnetism is vital for electric motors, wireless communication, and even medical imaging.
The electric force between two charges is given by \( F = k \frac{q_1 q_2}{r^2} \).
\[F = k \frac{q_1 q_2}{r^2}\]
Using magnets in electric generators.
Charging your phone wirelessly.
Electromagnetism unifies electricity and magnetism, powering much of modern technology.