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inductance

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inductance

In physics, phenomenon in which a changing current in a circuit builds up a magnetic field which induces an electromotive force either in the same circuit and opposing the current (self-inductance) or in another circuit (mutual inductance). The SI unit of inductance is the henry (symbol H).

A component designed to introduce inductance into a circuit is called an inductor (sometimes inductance) and is usually in the form of a coil of wire. The energy stored in the magnetic field of the coil is proportional to its inductance and the current flowing through it. See electromagnetic induction.



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This increased voltage selection, paired with enhanced magnetic inductance, provides better arc starts, smoother arc performance, creates less spatter and results in beads with flatter crowns and good wet out at the toes of the welds.
Compared to conventional face-up structures, ground inductance is reduced by more than half, thereby enabling an increase in amplification of at least 2 decibels at high frequencies of 5 gigahertz or greater.
Using a combination of a 1 pF cross capacitor that has negligible frequency dependence due to electrode surface films and a 10 pF nitrogen dielectric capacitor with a very small residual inductance as references, NIST staff have measured the frequency dependence of two 10 pF transportable fused-silica capacitors from 50 Hz to 20 kHz.
 
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