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Resistors in SeriesAuthor: E.E. Kimberly If two or more resistors be connected in series, the current will be the same in all. The voltage drop across each resistor is the product of the resistance of that resistor and the current; and the
voltage drop across the whole circuit is the sum of the voltage drops across the individual resistors. In the circuit in Fig. 33, for example,
V = R_{1}I + R_{2}I + R_{3}I + R_{4}I
In a series circuit the applied voltage is divided among the various resistance parts of the circuit in proportion to their respective resistances.
Example 32.  Connected in series to a 230volt line are four resistors having the following resistances: R_{1} = 50 ohms, R_{2} = 10 ohms, R_{3}=15 ohms, R_{4} = 40 ohms. Find the voltage drop across each resistor.
Solution.  The total resistance is
Then the voltage drops are:


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