So far, we have understood very well that what is the difference between series and parallel resistance. Method For solving Series-Parallel circuit In the parallel portions of the circuit, voltage is common and the branch currents are additive. In summary, in the series portions of the circuit, the current is common and the voltages (and resistances) are additive.
The point where those same currents converge (or rejoin) is the other end of that same parallel combination, i.e points A and B.ĥ).A point where current splits, or branches, is one end of a parallel combination of components, i.e points C and D.Therefore, branch 1 and branch 2 are in parallel with each other.Ĥ) Another method to find the Parallel connection of the circuit is by observing current branching and converging points to identify components, or combinations of components that are in parallel with each other, as given in the circuit diagram below
Branch 2 i.e (R 4 + R 5) is across the same potential as branch 1 i.e (R 2 + R 3).Therefore, the voltage from point B to point C is the same as the voltage from point A to point D. By looking at the above circuit we can identify that Points A and B are electrically the same point and points C and D are electrically the same points.As we know that in PARALLEL CIRCUIT, the components or combinations of components with the same voltage connection points (at both ends) are in parallel with each other as shown in the figure. R 1, R 6, and R 7 have common current (I T) and they are in series with each other, and with the total parallel combination of the R 2 + R 5 branch in parallel with the R 4 + R 5 branch.ģ) Now we will identify the parallel resistance by observing common voltages shared component or resistance in a circuit.R 2 and R3 have common current (I 1 ) and are in series with each other.R 4 and R 5 have common current (I 2) thus they are in series with each other.Starting “away from the source” and working back As we already discussed in the post “ Series circuit“ that Components or combinations of components with common current are in series with each other.įrom the above figure, we will now identify the series resistance. One of the best ways to identify series and the parallel circuit is to start analyzing the portion of the circuit farthest from the source and work back toward the source to identify those components that are in series and in parallel.Ģ) Trace common current paths to identify components in series as shown in the figure. (2) Parallel components in a series-parallel circuit may be in parallel with other individual components, or with other combinations of components, as given in the figure below.Īpproach to Identify and Analyze Series and Parallel Circuitġ). (1) Series components in a series-parallel circuit may be in series with other individual components, or with other combinations of components as shown in the figure. Characteristics of Series-Parallel Circuit
However, it is important to understand series and parallel circuits in order to work with combination circuits. Almost all electrical equipment has combination circuits rather than only series circuits or only parallel circuits. They are sometimes called series-parallel circuits. Why synchronous motor is not self startingīasic Electrical | Series and Parallel circuit | Series Parallel circuitĬombination electrical circuits are made up of both series and parallel parts some load units are connected in series and some are connected in parallel.
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