Resistors in Series and Parallel

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Presentation transcript:

Resistors in Series and Parallel Ch. 20 - 2

Resistors : Series In a series circuit, all components are connected end- to-end, forming a single path for electrons to flow. When resistors are connected in series, the current in each resistor is the same.

Resistors: Series Total current in a series circuit depends on how many resistors are present and how much resistance each offers. The equivalent resistance can be used to find current.

Guided Practice Open books to pg. 738 Sample Problem 20A

Resistors : Series Series circuits require all elements to conduct.

Resistors: Parallel In a parallel circuit, all components are connected across each other, forming exactly two sets of electrically common points.

Resistors: Parallel The sum of currents in parallel resistors equals the total current. Resistors in parallel have the same potential differences across them.

Resistors: Parallel The equivalent resistance must always be less than the smallest resistance in the group of resistors.

Guided Practice Open books to pg. 743 Sample Problem 20B

Summary Table pg. 742