Circuits with more than one resistor, then Watt happens?

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Series and Parallel Circuits

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Presentation transcript:

Circuits with more than one resistor, then Watt happens? Series and Parallel are the 2 ways of connecting multiple resistors

Series Circuits In a Series Circuit there is only one path for charges to flow so the current (I) is the same everywhere.

Series Circuits The total Resistance is the sum of the 2 resistor values: Rtotal = R1 +R2 To Find the Current (I) , use I = V/Rtotal

Series Circuits The battery puts in Volts (energy = skittles) and each of the resistors uses up some of the Volts. Together the 2 resistors use up the total Volts that the battery puts in.

Series Circuit

Series Circuit

Parallel Circuit In a parallel circuit both resistors get the same amount of voltage as the battery puts in.

Parallel Circuit Now moving charges (current) has a choice of which path to take. The current (I) must be conserved so I1 =I2 + I3

Parallel Circuit Rule for finding the total resistance in parallel: 1/Rtotal = 1/R1 + 1/R2 Use this total resistance to find the current (I) supplied by the battery

Parallel Circuit