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The Hall parameter, β, in a plasma is the ratio between the electron gyro-frequency, and the electron-heavy particle collision frequency. In a plasma, the ... more
The magnetic diffusivity is a parameter in plasma physics which appears in the magnetic Reynolds number.
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In plasma physics, the Lundquist number (denoted by S) is a dimensionless ratio which compares the timescale of an Alfvén wave crossing to the timescale of ... more
The Aharonov–Bohm effect, sometimes called the Ehrenberg–Siday–Aharonov–Bohm effect, is a quantum mechanical phenomenon in which an electrically charged ... more
The Stuart number (N), also known as magnetic interaction parameter, is a dimensionless number of fluids, i.e. gases or liquids.
It is defined as ... more
The magnetic energy stored by a coil carrying a current is given by one half of the inductance of the coil times the square of the current
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In electrical and electronic systems, reactance is the opposition of a circuit element to a change of electric current or voltage, due to that ... more
In electrical and electronic systems, reactance is the opposition of a circuit element to a change of electric current or voltage, due to that ... more
Inductance per length and capacitance per length are related to each other in the special case of “transmission lines” consisting of two ... more
A brushed DC motor is an internally commutated electric motor designed to be run from a direct current power source. Brushed motors were the first ... more
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