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Why do you replace voltage sources with short circuits and current sources with open circuits in thevenin's theorem?
Wiki User
∙ 14y ago
The equivalent of an inactive Thevenin voltage source is a source with zero voltage between its terminals regardless of the current through it, best represented by a zero resistance, i.e. a short-circuit. The equivalent of an inactive Norton current source is a source through which no current can flow regardless of the voltage across it, best represented by an infinite resistance, i.e. an open circuit.
Wiki User
∙ 14y ago
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What is a Thevenin's equivalent circuit consists of?
A Thevenin's equivalent circuit is a single voltage source in series with a single resistor. It is electrically the same as any combination of voltage sources, current sources, and resistors that, as a black box, has two terminals. The technique is useful in simplifying circuits, when analyzing them.
How do you use thevenin's theorem to calculate current in resistors?
If this is an independent current source, it has to be disconnected.Independent voltage sources are replaced by a short-circuit.More about this at (see Related links):MasteringElectronicsDesign.com: How to Apply Thevenin's Theorem - Part 1, Solving Circuits with Independent SourcesandMasteringElectronicsDesign.com: How to Apply Thevenin's Theorem - Part 2. Nested Thevenin Sources Method
When are series circuits useful-?
when loads act as switches
What are some simple electronic devices that are used in electrical engineering?
Resistors, capacitors, inductors, transformers, diodes, transistors, integrated circuits, power sources are the basic building blocks.
Explain thevenin's theorem?
Thévenin's theorem for linear electrical networks states that any combination of voltage sources, current sources, and resistors with two terminals is electrically equivalent to a single voltage source V and a single series resistor R #wikipediaactually i will explain you the way to solve problems applying this theorem consider a large network and in that network assume any resistance R about which you are asked o find the current and voltage-drop. now follow the steps below carefully1. remove the specific resistor from the circuit (open the resistor) and find the voltage across both the points(or even parallel to both the points) where the resistor is opened this is called VTH (this is called thevenin's voltage).Also dont forget to open the current sources if present.2. now to calculate the effective resistance as seen from the opened resistor short all the voltage sources and open all the current sources. and assume an arbitrary voltage V in the place of the opened resistor find current through the branch by mesh analysis and the ratio of voltage and current gives you the effective resistance fo the circuit as seen from the opened resistor. this is called Rth (thevenin resistance).now , after getting the values of VTH,RTH construct a circuit in which the given resistance R and RTH arein series with the voltage source VTH , and the so called found current is the current flowing through R in the actual circuit
What is altarnitive energy used for?
Potentially, to replace current energy sources
Which of these are not components of all circuits energy sources wires switches and loads?
switches
What is a Thevenin's equivalent circuit consists of?
A Thevenin's equivalent circuit is a single voltage source in series with a single resistor. It is electrically the same as any combination of voltage sources, current sources, and resistors that, as a black box, has two terminals. The technique is useful in simplifying circuits, when analyzing them.
How do you use thevenin's theorem to calculate current in resistors?
If this is an independent current source, it has to be disconnected.Independent voltage sources are replaced by a short-circuit.More about this at (see Related links):MasteringElectronicsDesign.com: How to Apply Thevenin's Theorem - Part 1, Solving Circuits with Independent SourcesandMasteringElectronicsDesign.com: How to Apply Thevenin's Theorem - Part 2. Nested Thevenin Sources Method
What has the author Mark E Hazen written?
Mark E. Hazen has written: 'Alternative energy' -- subject(s): Renewable energy sources 'Fundamentals of DC and AC circuits' -- subject(s): Electric circuits, Direct current, Alternating current 'Experiencing electricity and electronics, conventional current version' -- subject(s): Electronic circuits, Electric circuits
What use of c in circuits?
C = capacitors. Capcitors can be used to store voltages so that they become voltage sources, or they can be used in mixed A/D circuits as timers, attenuators, filters, etc.
Where can videos on PCBs be viewed?
There are several sources for videos on PCB's. Some of these sources include Mega UK, Euro Circuits, Everything PCB, Altium, Instructables, and Youtube.
Why does one replace voltage sources with a short circuit and current sources with an open circuit when using Thevenin's Theorem Long explanation please?
A: THEVENIN theorem simply is a way to simplify a complex input and resistance to a simple form. maybe you are confusing it with nodal analysis
What is characteristics of current source?
The characteristic of the current sources is that it cannot operate in an pen circuit.
Where is theorem used?
In circuits with multiple sources. This allows you to analyze the effects of each source separately, which often simplifies the math.
When cells are connected in parallel then?
putting cells in series gives you a higher voltage but at the same current rating. putting cells in parallel gives you the same voltage but at a higher current rating. series parallel can give you both..
Where can you find the wiring diagrams for a 1997 mountaineer?
Professional-grade Automotive Wiring Diagrams are available from the following sources: Alldata [alldatadiy.com] (black & white circuits) $25 Mitchell Repair [eautorepair.net] (black & white circuits) $10 Automotive Hobbyists [ahdol.com] (full-color circuits) $10 // Free wiring information (not diagrams though) is available from the following sources: Install Doctor [installdr.com] The 12 Volt [the12volt.com]
