Chapter 7: ElectricityPart 3: Series and Parallel CircuitsSeries
CircuitsWhen two or more resistorsConnected one end after anotherTo
form a single path for current flowSeries CircuitsPotential
difference from the battery is sharedTherefore each bulb glows
dimlySeries CircuitsCurrent flow of each bulb is sameTherefore
brightness of each bulb is the sameSeries CircuitsThe circuit is
broken when one bulb is removedAnd the other bulbs go out as
wellParallel CircuitsAll components are connectedWith their
corresponding ends joined togetherTo form separate and parallel
paths for current flowParallel CircuitsEach bulb is connected
directly to the batteryThus each bulb glows brightlyBecause each
bulb gets the full potential differenceParallel CircuitsEach bulb
has a higher brightnessThan each bulb in a series circuitParallel
CircuitsThe circuit remains unbrokenIf one bulb is removedSo the
other two bulbs will remain to workCompare the Circuits
CurrentSeries CircuitA1A2XY3 1 Current has only one path to
flowReading on A1 = Reading on A2Same current flows through each
resistorsParallel CircuitCurrent splits into different pathsReading
on A = Reading on A1 + A2Main current is shared between the two
resistors1 A1A2XY3 ACompare the Circuits Potential DifferenceSeries
CircuitReading on V = Reading of V1 + V2Potential Difference is
shared by the two resistorsParallel CircuitReading on V1 = Reading
on V2Potential difference is the same across each resistorV1V2XY3 1
V1V2XY3 1 VCompare the CircuitsSeries CircuitWhen one bulb has
blown upThe other bulb would not be able to light upParallel
CircuitWhen one bulb has blown upThe other bulb can still light
upCompare the CircuitsSeries CircuitDimmer bulbsLess voltage across
each bulbParallel CircuitBrighter bulbsHigher voltage across each
bulbLess current pass through each bulbLarger current pass through
each bulbDetermining Effective ResistanceSeries CircuitParallel
CircuitR1R2R3I1I2I3V1V2V3IVR1V1R2V2R3V3II1I2I3VCurrentPotential
DifferenceResistance
