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is equivalent to a pure resistance. (E5C12) '''The coordinate system that is often used to display the resistive, inductive, and/or capacitive reactance components of an impedance is rectangular coordinates.''' (E5C13) The coordinate system that is often used to display the phase angle of a circuit containing resistance, inductive and/or capacitive reactance is polar coordinates. (E5C14)
The solution is an inductor in series with the high side (and/or low side) of the line and a shunt capacitor across the lines. A common-mode EMI signal appears on the two signal lines simultaneously in the same direction and phase.The signal on each line returns through a common ground. The solution, a common-mode choke, produces equal and opposite magnetic fields that cancel one another. A capacitor from each line to ground is also used.hen identifying and controlling electromagnetic interference (EMI), discussion of common-mode and differentialmode interference will likely dominate. Differential-mode interference is a signal that appears on two lines of a closed loop, but current flow is in opposite directions.