Parallel and Series Circuits

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Parallel and Series Circuits:

Parallel and Series Circuits Brief presentation on Parallel and Series circuits

Types of Electric Circuits:

Types of Electric Circuits A circuit can either be Parallel or Series. Series Circuit Parallel Circuit

Series Circuit:

Series Circuit A series circuit is one where the current has “no choice” as to which “path” to follow. There are no junctions in a series circuit. Current flows through every part of the circuit

Switch in a Series circuit:

Switch in a Series circuit A single switch will control all bulbs in a series circuit

Adding bulbs to a Series circuit:

Adding bulbs to a Series circuit Adding extra bulbs in a series circuit reduces their brightness ( as resistivity increases ) Each light bulb is just another resistor in a series circuit, where you add the individual resistances to get the total resistance (unless the bulbs are set up in parallel, where adding a second identical light bulb would cut the total resistance in half).

Parallel Circuit:

Parallel Circuit A parallel circuit is one where the current has a “choice” as to “which path” to flow

Switch in a Parallel circuit (Single Bulb):

Switch in a Parallel circuit (Single Bulb) When switch in a parallel circuit can control a single lamp:

Switch in a Parallel circuit (All Bulbs):

Switch in a Parallel circuit (All Bulbs) When switch in a parallel circuit can control all the lamps:

Adding bulbs to a Parallel Circuit:

Adding bulbs to a Parallel Circuit Adding extra lamps to a parallel circuit does not reduce their brightness

Summary (Series Circuit):

Summary (Series Circuit) A series circuit is one where the current has “no choice” as to which “path” to follow There are no junctions in a series circuit A single switch will control all the lamps in a series circuit Adding extra lamps to a series circuit reduces their brightness Current flows through every part of the circuit Each light bulb is just another resistor in a series circuit, where you add the individual resistances to get the total resistance (unless the bulbs are set up in parallel, where adding a second identical light bulb would cut the total resistance in half ).

Summary (Parallel Circuit):

Summary (Parallel Circuit) A parallel circuit is one where the current has a “choice” as to “which path” to flow A switch in a parallel circuit can control a single lamp A switch in a parallel circuit can control all the lamps Adding extra lamps to a parallel circuit does not reduce their brightness

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