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If we are able to identify which parts of the circuit are series and which parts are parallel, we can analyze it in stages, approaching each part one at a time, using the appropriate rules to determine the relationships of voltage, current, and resistance.
Determine whether resistors are in series, parallel, or a combination of both series and parallel. Examine the circuit diagram to make this assessment. Resistors are in series if the same current must pass sequentially through them. Use the appropriate list of major features for series or parallel connections to solve for the unknowns.
In a parallel circuit, all components share the same electrical nodes. Therefore, the voltage is the same across all parallel components, and the total current is the sum of all the individual branch currents. In this introduction to parallel resistance circuits, we will explain the three key principles you should know: Voltage: The voltage is ...
In section 9.1, we limited ourselves to relatively simple circuits, essentially nothing more than a battery and a single lightbulb. The purpose of this chapter is to introduce you to more complex circuits, containing multiple resistors or voltage sources in series, in parallel, or both.
The application of Ohm’s law using the table method is demonstrated for both series and parallel circuits. The table method provides an easy, structured technique for ensuring you arrive at the correct circuit values for current, voltage, and resistance.