4/24/2023 0 Comments Parallel circuitNonetheless, when taken as a whole, the total amount of current in all the branches when added together is the same as the amount of current at locations outside the branches. In a parallel circuit, charge divides up into separate branches such that there can be more current in one branch than there is in another. Charge does NOT become used up by resistors in such a manner that there is less current at one location compared to another. Charge does NOT pile up and begin to accumulate at any given location such that the current at one location is more than at other locations. The rate at which charge flows through a circuit is known as the current. These additional tollbooths will decrease the overall resistance to car flow and increase the rate at which they flow. Adding additional tollbooths within their own branch on a tollway will provide more pathways for cars to flow through the toll station. A tollbooth is the main location of resistance to car flow on a tollway. In an effort to make this rather unexpected result more reasonable, a tollway analogy was introduced. This decreased resistance resulting from increasing the number of branches will have the effect of increasing the rate at which charge flows (also known as the current). Since there are multiple pathways by which charge can flow, adding another resistor in a separate branch provides another pathway by which to direct charge through the main area of resistance within the circuit. In that section, it was emphasized that the act of adding more resistors to a parallel circuit results in the rather unexpected result of having less overall resistance. When arriving at the branching location or node, a charge makes a choice as to which branch to travel through on its journey back to the low potential terminal.Ī short comparison and contrast between series and parallel circuits was made in an earlier section of Lesson 4. Each charge passing through the loop of the external circuit will pass through a single resistor present in a single branch. The presence of branch lines means that there are multiple pathways by which charge can traverse the external circuit. In a parallel circuit, each device is placed in its own separate branch. When all the devices are connected using parallel connections, the circuit is referred to as a parallel circuit.
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