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Resistors are connected in series when they are arranged sequentially in a single line, causing a common current to flow through each of them. In such a configuration, all the resistors can be replaced by a single equivalent resistor. These resistors follow the fundamental principles of Ohm's Law and Kirchhoff's Circuit Laws. In a series circuit, the same current flows through each resistor because the current can only follow one path. The total resistance of the circuit is the sum of the individual resistances of all the resistors. Series resistor networks can also function as voltage dividers, where the total voltage is divided among the resistors. A series circuit with N resistors will have N different voltages across the resistors, proportional to their individual resistances.