reverse polarity - meaning and definition. What is reverse polarity
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What (who) is reverse polarity - definition

FLOW OF ELECTRIC CHARGE (FOR SPECIFIC QUANTITIES SEE Q29996 OR Q234072)
Amperage; Electrical current; Conventional current; Electric Current; Electrical Current; Electric polarity; Electrical Polarity; Current (electric); Electric currents; Electric conduction; Electrical conduction in gases; Current (electricity); Electron current; AC/DC (electrical); Electrical polarity; Ion flow; Current electricity; Current (electrical); Dynamic electricity; Conduction current; Conventional current flow; AC/DC (electricity); Electric current intensity; DC polarity; Reverse polarity; + pole; Plus pole; Minus pole; − pole; - pole; Electron flow; Positive (electrical polarity); Negative (electrical polarity); Electric current measurement
  • symbol]] for a battery in a [[circuit diagram]].
  • Alternating electric current flows through the solenoid, producing a changing magnetic field. This field causes an electric current to flow in the wire loop by [[electromagnetic induction]].
  • Magnetic field is produced by an electric current in a [[solenoid]].
  • A [[proton conductor]] in a static [[electric field]].

Apolar         
  • The ammonia molecule, NH<sub>3</sub>, is polar as a result of its molecular geometry. The red represents partially negatively charged regions.
  • In a molecule of [[boron trifluoride]], the trigonal planar arrangement of three polar bonds results in no overall dipole.
  • Carbon dioxide has two polar C-O bonds in a linear geometry.
  • The water molecule is made up of oxygen and hydrogen, with respective electronegativities of 3.44 and 2.20. The electronegativity difference polarizes each H–O bond, shifting its electrons towards the oxygen (illustrated by red arrows). These effects add as vectors to make the overall molecule polar.
  • In [[methane]], the bonds are arranged symmetrically (in a tetrahedral arrangement) so there is no overall dipole.
  • Resonance Lewis structures of the ozone molecule
ELECTROSTATIC PROPERTY OF A MOLECULE
Nonpolarity; Polar molecule; Polar compound; Polar molecules; Polar bond; Apolar; Bond dipole moment; Polar covalent bond; Nonpolar molecule; Polar covalent bonds; Polar Bond; Nonpolar; Non-polar; Polarity (chemistry); Polarity (Chemistry); Polar bonds; Molecular polarity; Bond polarity; Non-polar covalent bond; Chemical Polarity; Chemistry Polarity; Polar solution; Polar fluids; Polar-covalent bond; Non-polar chemicals; Nonpolar molecules; Non-polar molecule; Polar covalent
·adj Having no radiating processes;
- applied particularly to certain nerve cells.
apolar         
  • The ammonia molecule, NH<sub>3</sub>, is polar as a result of its molecular geometry. The red represents partially negatively charged regions.
  • In a molecule of [[boron trifluoride]], the trigonal planar arrangement of three polar bonds results in no overall dipole.
  • Carbon dioxide has two polar C-O bonds in a linear geometry.
  • The water molecule is made up of oxygen and hydrogen, with respective electronegativities of 3.44 and 2.20. The electronegativity difference polarizes each H–O bond, shifting its electrons towards the oxygen (illustrated by red arrows). These effects add as vectors to make the overall molecule polar.
  • In [[methane]], the bonds are arranged symmetrically (in a tetrahedral arrangement) so there is no overall dipole.
  • Resonance Lewis structures of the ozone molecule
ELECTROSTATIC PROPERTY OF A MOLECULE
Nonpolarity; Polar molecule; Polar compound; Polar molecules; Polar bond; Apolar; Bond dipole moment; Polar covalent bond; Nonpolar molecule; Polar covalent bonds; Polar Bond; Nonpolar; Non-polar; Polarity (chemistry); Polarity (Chemistry); Polar bonds; Molecular polarity; Bond polarity; Non-polar covalent bond; Chemical Polarity; Chemistry Polarity; Polar solution; Polar fluids; Polar-covalent bond; Non-polar chemicals; Nonpolar molecules; Non-polar molecule; Polar covalent
¦ adjective chiefly Biochemistry having no electrical polarity.
Reverse mathematics         
BRANCH OF MATHEMATICAL LOGIC THAT SEEKS TO DETERMINE WHICH AXIOMS ARE REQUIRED TO PROVE THEOREMS OF MATHEMATICS
Reverse Mathematics; Weak König's lemma; Weak Konig's lemma; Arithmetical transfinite recursion; Constructive reverse mathematics; Bounded reverse mathematics
Reverse mathematics is a program in mathematical logic that seeks to determine which axioms are required to prove theorems of mathematics. Its defining method can briefly be described as "going backwards from the theorems to the axioms", in contrast to the ordinary mathematical practice of deriving theorems from axioms.

Wikipedia

Electric current

An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume.: 2 : 622  The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric circuits the charge carriers are often electrons moving through a wire. In semiconductors they can be electrons or holes. In an electrolyte the charge carriers are ions, while in plasma, an ionized gas, they are ions and electrons.

The SI unit of electric current is the ampere, or amp, which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit.: 15  Electric current is measured using a device called an ammeter.: 788 

Electric currents create magnetic fields, which are used in motors, generators, inductors, and transformers. In ordinary conductors, they cause Joule heating, which creates light in incandescent light bulbs. Time-varying currents emit electromagnetic waves, which are used in telecommunications to broadcast information.