Consider the figure below. What is the equivalent resistance of the circuit? Equivalent Resistance: If a single resistor can be replaced in place of group of resistors in such that it does not vary the current flow inside the electrical circuit, then this resistor with some r...
In an electric circuit, the resistors may be connected in various possible combination. Out of that one of the most simple combination is the series combination. In series combination to find the equivalent resistance of the circuit, we simply add all the ...
The equivalent series resistance of a capacitor is the internal resistance that appears in series with the capacitance of the device. Almost all capacitors exhibit this property at varying degrees depending on the construction, dielectric materials, quality, and reliability of the capacitor. The equival...
Thevenin theorem is used to convert a complex electrical circuit to a simple two-terminal Thevenin equivalent circuit. A Thevenin equivalent circuit contains one Thevenin resistance and Theveninvoltagesource connected with a load, as shown in the figure below. Thevenin Theorem Thevenin resistance (Rth)...
Therefore impedance control proves vital for signal integrity especially in multi-Gbps serial links. Modeling PCB Trace Impedance The PCB trace impedance gets modeled by an equivalent electrical transmission line with distributed resistance, inductance, conductance and capacitance along its length: ...
Acomponenton a DC circuit has a resistance of 1 Ω when a potential difference of 1 V produces a current of 1 A through the component, so a 9 V circuit with a 0.5 A current has a resistance of 18 Ω. In this example, however, the resistance is attributed entirely to the lightbulb,...
So, we arrive at our cryptic parallel equivalent resistance formula at last! Conductance (G) is seldom used as a practical measurement, so the formula above is common in the analysis of parallel circuits. Review of Conductance Conductance is the measure of how easy it is for electric current ...
where L and C are inductance and capacitance. This is an ideal state. Generally, there are parasitic parameters in the circuit, like in Figure 4. Figure 4. LC filter with parasitic parameters. DCR is the DC equivalent resistance of an inductor L. ESR is the equivalent series resistanc...
When the tap is off, then this is equivalent to a switch stopping any current flow into e electrical circuit.Relationship between resistance, voltage and currentIt can be imagined from he analogy of the water tank system, that increasing he voltage in an electrical circuit will increase the ...
The equivalent circuit of an NPN transistor is as shown in the figure below. Equivalent Circuit of an NPN Transistor As a quick reminder, an N-type semiconductor is one where a large number of free electrons are available and it acts as a majority charge carrier. Under the influence ofpoten...