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What is a charge in physics?
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Learn what electric charge is, how it is measured, and what types and properties it has. Find out how charge is transferred by friction, conduction, and induction, and how Coulomb's Law describes the force between charges.
- 45 min
Learn what charge means in science, how it affects matter and fields, and what units are used to measure it. Find out about electric charge, color charge, and magnetic charge in physics and chemistry.
Apr 2, 2024 · Electric charge is a property of matter that determines how it interacts with electric or magnetic fields. Learn about the types, conservation, and measurement of electric charge, and see examples and related topics.
- The Editors of Encyclopaedia Britannica
Electric charge (symbol q, sometimes Q) is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Electric charge can be positive or negative. Like charges repel each other and unlike charges attract each other. An object with no net charge is referred to as electrically neutral.
- q
- C = A⋅s
- yes
- coulomb (C)
In physics, a charge is any of many different quantities, such as the electric charge in electromagnetism or the color charge in quantum chromodynamics. Charges correspond to the time-invariant generators of a symmetry group, and specifically, to the generators that commute with the Hamiltonian.
Learn about the history, properties and types of electric charge, and how it is transferred and measured. Explore the triboelectric series, the amber effect, and Franklin's experiments with lightning and kites.
Jan 13, 2021 · The difference between the two types of electric charge is in the directions of the electric forces that each type of charge causes: These forces are repulsive when the same type of charge exists on two interacting objects and attractive when the charges are of opposite types.
