series and parallel circuits Flashcards
what are the 2 ways that a component can be connected in a circuit
- series (same loop)
- parallel (adjacent loop)
how does pd vary across 2 components vary when connected in series and parallel
- series : total pd shared between each component
- parallel : pd across each component is the same
if 2 resistors are connected in parallel what can be said about their combined resistance
the total resistance is less that the smallest of the 2 individual resistances
if 2 resistors are connected in series what can be said about their total resistance
their total resistance is equal to the sum of the 2 individual resistances
describe the current in a series circuit
the current is the same at all positions as the charge has only one path to flow through
describe the current in a parallel circuit
the current is shared between the different branches. when the charge reaches a junction it splits
how should an ammeter be connected to measure current
connected in series with the component they are measuring current through
how should a voltmeter be connected in a circuit to measure pd
parallel to component they are measuring pd of
advantages of connecting lamps in parallel
if 1 lamp blows the rest unaffected and cam still receive current