<^< Resistors in Series | Course Index | Resistors in Parallel >^>
| Objective:
| To investigate resistors connected in series.
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| Underpinning knowledge:
| Resistance. Preferred values. Series connections.
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| Apparatus:
| TINA circuit file, or apparatus to make the following circuit.
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| TINA Circuit File:
| Click here to download circuit file
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| Initial Settings:
| R1 = 1kΩ, R2 = 2kΩ, R3 = 3kΩ.
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| Requires:
| Paper, Linear graph paper, pen or pencil.
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| Instructions:
(a) Using initial settings verify that R = R1 + R2 + R3.
(b) Change R1 to 15kΩ, R2 to 27kΩ and R3 to 33kΩ.
(c) Again check that R = R1 + R2 + R3.
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Observations:
Confirm that, in each case, the effective resistance of the series combination of resistors is equal to the sum of the individual resistance values.
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| Further work:
Using only preferred value resistors in the E12 series, suggest how you could use a series combination of three fixed resistors to obtain the following values of resistance: 333Ω, 5Ω, and 3.75Ω. Check your answers using your simulation software.
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<^< Resistors in Series | Course index | Resistors in Parallel >^>
