The L/R or inductance to resistance ratio of a cable is defined as follows: L/R ratio = Inductance per unit length ( H ) Loop resistance per unit length (Ω) With the loop resistance being the sum of the resistances of both conductor s to the load. Normally twice the cable length. Ex. 5-3 Vectors and Phasors in Parallel AC Circuits . 157 Using vectors and phasors to analyze the operation of parallel ac circuits. Viewing current phasors in RL, RC, and RLC parallel circuits. Ex. 5-4 Impedance ..... 165 Definition of impedance, Ohm's law in ac circuits. Using impedance concepts to simplify the analysis
Sep 02, 2020 · Starting from the circuit schematic, as usually drawn here: Something which is not shown is the decoupling capacitor from +12v to 0v. The purpose of the decoupling capacitor is to remove any signals from the 12v line, in other words, it creates a very low impedance (short circuit) at signal frequencies. If only two components are present, it's either an RC circuit, an RL circuit, or an LC circuit. The overall resistance to the flow of current in an RLC circuit is known as the impedance, symbolized by Z. The impedance is found by combining the resistance, the capacitive reactance, and the inductive reactance.
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