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The mass-to-charge ratio ( m / Q) is a physical quantity relating the mass (quantity of matter) and the electric charge of a given particle, expressed in units of kilograms per coulomb (kg/C). It is most widely used in the electrodynamics of charged particles, e.g. in electron optics and ion optics .
Division is one of the four basic operations of arithmetic. The other operations are addition, subtraction, and multiplication. What is being divided is called the dividend, which is divided by the divisor, and the result is called the quotient. At an elementary level the division of two natural numbers is, among other possible interpretations ...
Division by zero. The reciprocal function y = ā 1 xā . As x approaches zero from the right, y tends to positive infinity. As x approaches zero from the left, y tends to negative infinity. In mathematics, division by zero, division where the divisor (denominator) is zero, is a unique and problematic special case.
Five whys (or 5 whys) is an iterative interrogative technique used to explore the cause-and-effect relationships underlying a particular problem. [1] The primary goal of the technique is to determine the root cause of a defect or problem by repeating the question "why?" five times, each time directing the current "why" to the answer of the ...
A surface charge is an electric charge present on a two-dimensional surface. These electric charges are constrained on this 2-D surface, and surface charge density, measured in coulombs per square meter (Cā¢m ā2 ), is used to describe the charge distribution on the surface. The electric potential is continuous across a surface charge and the ...
Partial charge. In atomic physics, a partial charge (or net atomic charge) is a non- integer charge value when measured in elementary charge units. It is represented by the Greek lowercase delta (šæ), namely šæā or šæ+. Partial charges are created due to the asymmetric distribution of electrons in chemical bonds.
The rms charge radius is a measure of the size of an atomic nucleus, particularly the proton distribution. The proton radius is about one femtometre = 10ā15 metre. It can be measured by the scattering of electrons by the nucleus. Relative changes in the mean squared nuclear charge distribution can be precisely measured with atomic spectroscopy .
2.6 Ć 10 1 C: Charge in a typical thundercloud (15ā350 C) 10 3: kilo-(kC) 5 Ć 10 3 C: Typical alkaline AA battery is about 5000 C ā 1.4 Aā h: 10 4 ~ 9.65 Ć 10 4 C: Charge on one mole of electrons (Faraday constant) ā 10 5: 1.8 Ć 10 5 C: Automotive battery charge. 50Ah = 1.8 Ć 10 5 C: 10 6: mega-(MC) 10.72 Ć 10 6 C: Charge needed to ...