[{"n": "Electrostatics", "u": "/e/part-1/electrostatics/", "s": "Branch of physics studying stationary electric charges and their forces."}, {"n": "Ferromagnetism", "u": "/e/part-1/ferromagnetism/", "s": "Strongest type of magnetism, enabling permanent magnets and many technologies."}, {"n": "Magnetic field", "u": "/e/part-1/magnetic-field/", "s": "A vector field quantifying magnetic influence at a given location."}, {"n": "Magnetostatics", "u": "/e/part-1/magnetostatics/", "s": "Study of magnetic fields with steady, non-changing currents."}, {"n": "Maxwell's equations", "u": "/e/part-1/maxwell-s-equations/", "s": "Coupled equations describing electric and magnetic field generation."}, {"n": "Lorentz force", "u": "/e/part-1/lorentz-force/", "s": "Force on a charged particle by electric and magnetic fields."}, {"n": "Lorentz transformation", "u": "/e/part-1/lorentz-transformation/", "s": "Linear transformations connecting inertial frames in spacetime."}, {"n": "Inductance", "u": "/e/part-1/inductance/", "s": "Inductance opposes changes in electric current via electromagnetic induction."}, {"n": "Radio wave", "u": "/e/part-1/radio-wave/", "s": "Electromagnetic waves with the longest wavelengths and lowest frequencies."}, {"n": "Infrared", "u": "/e/part-1/infrared/", "s": "Invisible electromagnetic radiation between visible light and microwaves."}, {"n": "Gamma ray", "u": "/e/part-1/gamma-ray/", "s": "Penetrating electromagnetic radiation from nuclear decay and cosmic events."}, {"n": "Polarization (waves)", "u": "/e/part-1/polarization-waves/", "s": "Property of transverse waves specifying oscillation orientation."}, {"n": "Reflection (physics)", "u": "/e/part-1/reflection-physics/", "s": "Wavefront returns into the original medium upon striking an interface."}, {"n": "Refraction", "u": "/e/part-1/refraction/", "s": "Refraction redirects waves when they change speed between media."}, {"n": "Refractive index", "u": "/e/part-1/refractive-index/", "s": "Ratio of light speed in vacuum to that in a medium."}, {"n": "Frequency", "u": "/e/part-1/frequency/", "s": "Frequency measures repeating events per unit time."}, {"n": "Resonance", "u": "/e/part-1/resonance/", "s": "Resonance amplifies vibrations when frequency matches a system's natural frequency."}, {"n": "Gain (electronics)", "u": "/e/part-1/gain-electronics/", "s": "Gain measures a circuit's ability to amplify a signal."}, {"n": "Noise", "u": "/e/part-1/noise/", "s": "Unwanted sound measured in decibels, regulated for health and environment."}, {"n": "Metamaterial", "u": "/e/part-1/metamaterial/", "s": "Engineered materials that manipulate waves through designed structure."}, {"n": "Photoelectric effect", "u": "/e/part-1/photoelectric-effect/", "s": "Emission of electrons from materials caused by electromagnetic radiation."}, {"n": "Photon", "u": "/e/part-1/photon/", "s": "Elementary particle and quantum of the electromagnetic field."}]