Parallel Circuits - Everything is Independent Flashcards
How is each component connected?
Each component is separately connected to the +ve and -ve of the supply
What happens if you remove or disconnect one component?
It will hardly affect the others at all
What are some examples of everyday things that use parallel circuits?
In cars
Household electrics
Light switch - one light
Which component is the only exception to this rule in parallel circuits?
Ammeters as they are always connected in series
What is the potential difference across each branch?
The same (V1 = V2)
What is the total current flowing around the circuit equal to?
The total of all the currents through the separate components
What is the current shared between?
The branches
There are junctions where the current either…
Splits or rejoins
What is the total current that goes into a junction equal to?
The total current leaving it, as charge can’t appear or disappear
What does the current through a branch depend on?
The resistance of the branch
The higher the resistance, the harder it is for charge to flow, so…
The lower the current in that branch
What happens if two identical components are connected in parallel?
The same current will flow through each component?
When will the total resistance of the circuit decrease?
When you add a second resistor in parallel
