Series Circuits

This image shows the concepts of series (left)...

This image shows the concepts of series (left) and parallel (right) circuits. In each circuit, there is a 9 V battery and two 500 Ω resistors. In the series circuit, the resistors subtract voltage and the current is equal everywhere. In the parallel circuit, each resistor provides additional conductivity, so the current through each of them is summed and the voltage is equal everywhere. See Series and parallel circuits. (Photo credit: Wikipedia)

Three electrical resistors.

Three electrical resistors. (Photo credit: Wikipedia)

Resistors in series

Resistors in series (Photo credit: Wikipedia)

English: A series circuit

English: A series circuit (Photo credit: Wikipedia)

Series circuits are sometimes called cascade-coupled or daisy chain-coupled. In series, the same current passes through all the components in the series. It has moe than one resistor (anything that uses electricity to do work). An ammeter located anywhere in the circuit would measure the same quantity. An ammeter is a measuring instrument used to calculate the flow of an electric current in a circuit.

In a series circuit, there’s only one pathway that the current can get because resistors are arranged in a chain. Through each resistor, the current is the same, so you would find the total resistance of the circuit by adding up the resistance of each resistor.


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