Maths
Engineering
Series Circuiting of resistors
Author
Gintautas Stonys
Target Group
gymnasium
Brief Description
Exercices of serial resistors

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  • Series Circuiting of Resistors

General

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If resistors or quite generally loads are circuited in series, the same current flows through them. The size of the current is determined by the ap plied voltage U and the total resistance Rtot:


Rtot = R1+R2+R3


A partial voltage is applied to each individual resistor. The sum of all the partial voltages gives the total resistance.

Utot= UR1+UR2+UR3


Experiment

By measuring current and voltage, prove that the current is the same at every point in a series circuit and that the sum of the partial voltages gives the total voltage.

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Experiment procedure


-Set up the experiment according to circuit (figure 2) and apply 10 V DC to the input.

-Break the connections between A-B, C-D, E-F and G-H one after another and measure the current through the series circuit between the test points.

-Then measure the partial voltages at test points B-C, D-E, F-G as well as the total voltage at test point B-G.

-Break the connections between point A and power supply and measure the resistance between point A and H.

Table 1

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Question 1: How do the partial voltages behave in relation to the corresponding resistance value?

Question 2: Are the measured resistivity directly different from the calculated according to the formulas?

Question 3: How to determine the resistance between points A and B as indirect measurements?


Related files

Connection of electrical measuring instruments-ilovepdf-compressed 152 KB
Series Circuiting of Resistors 378 KB
Solution_Series Circuiting of Resistors_T 497 KB
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