conservation of charge
Definition
Noun: * A fundamental principle in physics stating that the total electric charge within an isolated system remains constant over time. This means electric charge can neither be created nor destroyed; it can only be transferred from one object to another or converted between different forms (e.g., when a particle and its antiparticle annihilate, their net charge remains zero).
Usage
The term is used primarily in scientific contexts, especially in physics and chemistry, to describe an inviolable law of nature. * It is often stated as a law or principle. * It applies to isolated systems, meaning systems that do not exchange charge with their surroundings.
Examples
- In any chemical reaction, conservation of charge is always obeyed; the total charge on the reactants equals the total charge on the products.
- The conservation of charge explains why when you rub a balloon on your hair, the balloon gains a negative charge and your hair gains an equal positive charge.
- Physicists verified the conservation of charge in particle accelerator experiments involving the creation and destruction of matter.
Advanced Usage
- Linked to Gauge Symmetry: In theoretical physics, conservation of charge is a consequence of a fundamental symmetry of the universe known as .
- Local Conservation: The principle implies a , meaning charge cannot simply vanish in one place and appear in another without a current flowing between them, as described by the continuity equation.
Variants and Related Words
- Charge Conservation: A synonymous phrase often used interchangeably.
- Conservation Law: The general class of physical laws to which conservation of charge belongs, including conservation of energy and momentum.
- Conserved Quantity: A property, like electric charge, that remains constant in an isolated system.
Synonyms
- Charge conservation
- Principle of charge conservation
Related Concepts (Not Phrasal Verbs or Idioms)
- Electric Charge: The physical property that is conserved.
- Continuity Equation: The mathematical expression describing the local conservation of charge.
- Noether's Theorem: A fundamental theorem linking conservation laws to symmetries in physics, under which conservation of charge falls.
Noun
-
the principle that the total electric charge of a system remains constant despite changes inside the system
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