1133 Words5 Pages

We introduce you 3 new theories for advance electrical circuits, superposition theorem, Thevenin’s theorem and Norton’s theorem. The superposition theorem that applies in electrical circuits states that for a linear system the voltage and current in any branches of a bilateral linear circuit having more than one independent source equals the algebraic sum of the response caused by every independent source acting alone, where all the independent sources are replaced by their internal impedances. Superposition Theorem evaluating the segregated currents to combine together, replacing all others voltage sources by short circuit and all other current sources by the open circuits. To verify the contribution of each individual source, all of the sources*…show more content…*

Power dissipations do not algebraically add to an accurate total when there is only one source is take into account at a time. The needs for linearity also mean this Theorem cannot be applied in circuits where the resistance of a component changes with current or voltage. Other than this, another prerequisite for Superposition Theorem is which all of the components must be bilateral, which means that they act the same with electrons flowing in any direction through them. Resistors do not have polarity-specific behavior and the circuits must all meet this criterion. Thevenin’s Theory is a circuit which contains any combination of batteries and resistance with two terminals can be replaced by a single series resistor and a single voltage source. The value of the voltage is the open circuit voltage at the terminals and the value of resistor is the voltage source divided by the current with the terminals of the short circuit. In a circuit theory terms, the theorem allows any one-port network to*…show more content…*

In Norton theorem the circuit are replaced and connected to a particular branch by equivalent current source. In this theorem, the circuit network is reduced into a single constant current source in which the equivalent internal resistance is connected in parallel with it. Every voltage source can be changed into an equivalent current source. Norton’s Theorem declares that it is possible to simplify any linear circuit no matter how complex it is, to an equivalent circuit with just a single current source and parallel resistance connected to a load. The quialification of linear is unanimous to that which we found in Superposition Theorem, where all underlying equations must be linear. Supposing in a complex network we have to find out the current through a particular branch. If the network has one of more active sources, then it will automatically supply the current though the branch. As the current comes form the network, it can be considered that the network itself is a current source. In the Norton theorem, the network with dissimilar active sources is declined into single current source. The internal resistance is nothing but the looking back resistance connected in parallel to the derived source. The looking back resistance we said is the equivalent electrical resistance of the network when someone looks back into the network from the terminals where said branch is connected. While calculating the equivalent

Power dissipations do not algebraically add to an accurate total when there is only one source is take into account at a time. The needs for linearity also mean this Theorem cannot be applied in circuits where the resistance of a component changes with current or voltage. Other than this, another prerequisite for Superposition Theorem is which all of the components must be bilateral, which means that they act the same with electrons flowing in any direction through them. Resistors do not have polarity-specific behavior and the circuits must all meet this criterion. Thevenin’s Theory is a circuit which contains any combination of batteries and resistance with two terminals can be replaced by a single series resistor and a single voltage source. The value of the voltage is the open circuit voltage at the terminals and the value of resistor is the voltage source divided by the current with the terminals of the short circuit. In a circuit theory terms, the theorem allows any one-port network to

In Norton theorem the circuit are replaced and connected to a particular branch by equivalent current source. In this theorem, the circuit network is reduced into a single constant current source in which the equivalent internal resistance is connected in parallel with it. Every voltage source can be changed into an equivalent current source. Norton’s Theorem declares that it is possible to simplify any linear circuit no matter how complex it is, to an equivalent circuit with just a single current source and parallel resistance connected to a load. The quialification of linear is unanimous to that which we found in Superposition Theorem, where all underlying equations must be linear. Supposing in a complex network we have to find out the current through a particular branch. If the network has one of more active sources, then it will automatically supply the current though the branch. As the current comes form the network, it can be considered that the network itself is a current source. In the Norton theorem, the network with dissimilar active sources is declined into single current source. The internal resistance is nothing but the looking back resistance connected in parallel to the derived source. The looking back resistance we said is the equivalent electrical resistance of the network when someone looks back into the network from the terminals where said branch is connected. While calculating the equivalent

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