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Parallel Circuits

Parallel Circuits. Definition: Parallel Circuit A circuit that provides more than one current path between any two points is said to be a parallel circuit. Example. Circuit (a) provides two current paths between points (nodes) A and B.

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Parallel Circuits

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  1. Parallel Circuits Definition: Parallel Circuit A circuit that provides more than one current path between any two points is said to be a parallel circuit. EGR 101

  2. Example Circuit (a) provides two current paths between points (nodes) A and B. Circuit (b) provides three current paths between Ground and the + terminal of the battery. The PC Board circuit provides four current paths between the input terminals. EGR 101

  3. Currents in the Parallel BranchesKirchhoff’s Current Law IT EGR 101

  4. KCL The voltages across the parallel components are equal! EGR 101

  5. Equivalent Resistance EGR 101

  6. Special Case for 2 Resistors EGR 101

  7. Common Mistake EGR 101

  8. Equal Resistors in Parallel EGR 101

  9. Total (Equivalent) Resistance Is Always Lower Than Any Individual Resistor Consider the following circuit. By the numbers, the total (Equivalent) Resistance is equal to 10V/10mA, or 1 kΩ. EGR 101

  10. What About the Power? The power delivered by the source is equal to the sum of the individual powers dissipated in the resistors. EGR 101

  11. Summary EGR 101

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