"Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field."
The property of matter that causes it to experience a force when placed in an electromagnetic field.
Coulomb's Law: Describes the force between two point charges.
Electric Field: Defines the electric force experienced by a charged particle.
Electric Potential: Defines the energy per unit charge at a given point in an electric field.
Electric Potential Energy: Describes how much energy is required to bring two charges to a certain distance from each other.
Electric Dipole: Describes the distribution of electric charges in a system that have opposite but equal charges.
Gauss's Law: States the relationship between the distribution of electric charges and the electric field they create.
Capacitance: Describes how much charge can be stored in a system when a voltage is applied.
Dielectrics: Materials that can become polarized in an electric field, and affect the behavior of capacitors and other systems.
Current: The flow of electric charge through a conductor.
Resistance: Describes how much a material resists the flow of electric charge.
Ohm's Law: States the relationship between current, voltage, and resistance.
DC Circuits: Electric circuits where the current flows in one direction only.
AC Circuits: Electric circuits where the current oscillates back and forth in sinusoidal fashion.
Inductance: Describes how a change in current in a circuit can induce a voltage in a nearby conductor.
Electromagnetic Waves: Describes the relationship between electric and magnetic fields, and how they propagate through space.
Magnetic Fields: Describes how a magnet can affect other nearby magnets or conductors carrying electric current.
Lorentz Force: Describes the force on a charged particle in a magnetic field.
Faraday's Law of Induction: Describes how a changing magnetic field can induce a voltage in a nearby conductor.
Transformers: Electrical devices that can change voltage levels by using changes in magnetic fields.
Maxwell's Equations: A set of equations that describe the relationships between electric and magnetic fields, and how they propagate through space.
"Electric charge can be positive or negative (commonly carried by protons and electrons respectively, by convention)."
"Like charges repel each other and unlike charges attract each other."
"An object with no net charge is referred to as electrically neutral."
"Electric charge is a conserved property; the net charge of an isolated system, the quantity of positive charge minus the amount of negative charge, cannot change."
"Negative charge is carried by electrons, and positive charge is carried by the protons in the nuclei of atoms."
"If there are more electrons than protons in a piece of matter, it will have a negative charge, if there are fewer it will have a positive charge, and if there are equal numbers it will be neutral."
"Charge is quantized; it comes in integer multiples of individual small units called the elementary charge, e, about 1.602×10−19 C, which is the smallest charge that can exist freely."
"Particles called quarks have smaller charges, multiples of 1/3e, but they are found only combined in particles that have a charge that is an integer multiple of e."
"The interaction of electric charges with an electromagnetic field (a combination of an electric and a magnetic field) is the source of the electromagnetic (or Lorentz) force, which is one of the four fundamental interactions in physics."
"The study of photon-mediated interactions among charged particles is called quantum electrodynamics."
"The SI derived unit of electric charge is the coulomb (C) named after French physicist Charles-Augustin de Coulomb."
"In electrical engineering, it is also common to use the ampere-hour (A⋅h)."
"In physics and chemistry, it is common to use the elementary charge (e) as a unit."
"Chemistry also uses the Faraday constant, which is the charge of one mole of elementary charges."
"A moving charge also produces a magnetic field."
"The interaction of electric charges with an electromagnetic field (a combination of an electric and a magnetic field) is the source of the electromagnetic (or Lorentz) force."
"Electric charges produce electric fields."
"Early knowledge of how charged substances interact is now called classical electrodynamics, and is still accurate for problems that do not require consideration of quantum effects."
"In the Standard Model, charge is an absolutely conserved quantum number. The proton has a charge of +e, and the electron has a charge of −e."