b) Resistors

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5 Terms

1
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  • additional resistors in a series circuit…


  • increase the length of the wire

  • increase the total resistance


2
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  • the formula for the total resistance in a series circuit


  • R = R1 + R2 + R3…


3
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  • additional resistors in a parallel circuit…


  • increase the number of pathways

  • increase the total cross-sectional area of the wires

  • decrease the total resistance


4
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  • the formula for the total resistance in a parallel circuit


  • 1/R = 1/R1 + 1/R2 + 1/R3


5
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  • the relationship between the ratio of resistance and the ratio of pd between two components in a series circuit


  • ratio of R between two components = ratio of V across two components