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Published byAlycia Blondell Modified about 1 year ago

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Jump to first page user@domain Calculating Resistance in Series and Parallel Circuits Basic Formulas for Rapid Computation of Circuit Resistance

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Jump to first page Introduction n Informational lecture by Fred Baker n Electronics Instructor for U.S. Navy

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Jump to first page Topics of Discussion n Resistance totaling values, dependent on the circuit structure n Knowing how to calculate resistance depending on circuit structure n Understanding these basics can save valuable time and effort

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Jump to first page Resistance Rules for Series Circuits n Series circuits are always one-for- one additive u Rt = R1 + R2 + R3 + Rn

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Jump to first page Series Circuit n Sample of a Series Circuit layout R1 R2 R3

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Jump to first page Solving for Series Resistance n Calculate the resistance using the series formula: u Rt = R1 + R2 + R3 + Rn Rt = 20 + 30 + 50 R1= R2= R3=

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Jump to first page Resistance Rules for Parallel Resistance Circuit n Parallel circuits are reciprocally additive u Rt = 1 1 + 1 + 1 R1 R2 R3

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Jump to first page Parallel Circuit n Sample of a Parallel Circuit layout R1=20 R2=30 R3=50

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Jump to first page Solving for Parallel Resistance n Calculate using reciprocal formula: u Rt = 1 / 1/R1 + 1/R2 + 1/Rn Rt = 1/1/20 + 1/30 + 1/50 Rt = 1/0.05 + 0.033 + 0.02 Rt = 1/103 R1=20 R2=30 R3=50

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Jump to first page Summary n Determine the type of circuit layout you are working with n Apply the correct formula n Verify answer by double-checking math

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