Identification Flashcards
(39 cards)
The law that describes the magnetic field produced at a point due to a small segment of a current-carrying conductor.
Biot-Savart Law
The force experienced by a moving charge in a magnetic field.
Magnetic Force / Lorentz Force
The process by which a changing magnetic field generates an electric current or EMF in a conductor.
Magnetic Induction
A region around a moving charge or a magnet where a magnetic force is exerted.
A vector quantity represented by B.
Measured in Tesla (T)
Magnetic Field
The splitting of white light into different colors.
Dispersion of Light
Occurs when light is completely reflected at a boundary.
Total Internal Reflection
The bending of light when it passes from one medium to another.
Refraction
The process of restricting the vibrations of light waves to a single plane.
Polarization of Light
States that moving clocks run slower relative to a stationary observer.
Time Dilation
States that objects in motion appear shorter along the direction of motion.
Length Contraction
Electric current that periodically reverses direction.
Alternating Current (AC)
Electric current that flows in one direction with a constant voltage.
Direct Current (DC)
A circuit consisting of an inductor (L) and a capacitor (C) connected together.
LC Circuit
The ability of an inductor to store energy in a magnetic field.
Inductance
The opposition an inductor offers to changes in current in an AC circuit.
Inductive Reactance
The bending of light as it passes from one medium to another with a different refractive index.
Snell’s Law
The point where two or more waves overlap, affecting the resulting wave amplitude.
Interference
When two waves are in phase, their amplitudes add up, creating a stronger wave.
Constructive Interference
When two waves are out of phase, they cancel each other out.
Destructive Interference
A passive electrical component that stores energy in a magnetic field when electrical current flows through it.
Inductor
The force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them
Coulomb’s law
Defines the relationship between voltage current and resistance (V=IR)
Ohm’s law
The combined force on a charged particle due to electric and magnetic fields
Lorentz Force
The ability of a material to support the formation of a magnetic field is called ______
Permeability