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What is Permeability?
Permeability: This is defined as the ability of the material to conduct flux. This is defined as the ratio of magnetic flux 'B' in a medium to the magnetic flux intensity 'H' at similar location in the medium, that is µ = B/H, here B is plotted against H, a curve is acquired, called magnetization curve or B-H curve. The permeability of any material is not a constant. This permeability at low value of H is termed as initial permeability. The common core materials as low carbon steel, silicon steel contain low initial permeability.
These are small poles fixed to the yoke and spaced in b/w the main poles. They are wound with comparatively few heavy gauge Cu wire turns and are connected in series with the armat
Write explanatory notes on Hard disk drive controller. Hard disk drive controller: It converts instructions from software running upon the computer to the electrical signals
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Q. Consider an RL series circuit excited by (a) v(t) = 20e -2t V, and (b) v(t) = 20 V. Determine the forced component of the voltage across the inductor for R = 2 and L = 2H.
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