How to Connect Resistors in Series on Breadboard
A series DC circuit is a type of electrical circuit in which all components have the same amount of electrical current flowing through each component in the completed circuit. Series circuits are used as a part of all electrical and electronic circuits we find in use.
One of the simplest series circuits that can be created is a series circuit comprised of resistors. By causing the electrical current path to flow through all of the resistors placed in series, the total circuit resistance is equal to the sum of the individual resistance values of each electrical resistor.
Things You'll Need
- Two 10kΩ resistors
- Electronics breadboard (temporary circuit board) with at least 10 rows
- Digital or analog ohmmeter
Instructions
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1
Bend the electrical leads of the first resistor so that they will fit into the holes on the breadboard. Place one of the electrical leads into one of the holes on the top row of the breadboard. Place the other lead into one of the holes on the fifth row of the breadboard.
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2
Bend the electrical leads of the second resistor as in Step 1. Place the first electrical lead in one of the free holes on the fifth row of the breadboard (the hole closest to the second lead of the first resistor is best). Insert the other lead into one of the holes on the tenth row of the breadboard.
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3
Turn on the ohmmeter, and place one of the test leads on the resistor lead wire placed in the first row on the breadboard. Place the second ohmmeter lead on the resistor lead wire placed in the tenth row. Read the measurement (which should be approximately 20 kΩ).
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Tips & Warnings
Many breadboards have a large channel in the middle. This channel is so that microchips can be placed on the breadboard. As such, the rows separated by the channel are not electrically connected to each other.
Electrical resistors may not be exactly their rated value. A 5 percent 100Ω resistor may have a resistance value between 95Ω and 105 Ω. Check the resistor specifications to see what the tolerance is (typically between 1 percent and 10 percent).