quiz 11 Flashcards
What happens to the resistance of a thermistor as it gets hotter?
decreases
State an example of an application of an LDR in a circuit
automatic lighting
In what type of circuit are the components in multiple loops?
parallel
Describe the resistance properties of an LDR
As light intensity increases, resistance of LDR decreases
What happens to the resistance of a thermistor as its gets colder?
increases
Describe the resistance properties of a thermistor
As temperature increases , resistance of thermistor decreases
Why does the resistance of a filament lamp increase as current increases?
The temperature of the filament increases causing ions to vibrate more
In a circuit, one component breaks and all the components stop working. What type of circuit is it?
Series
State the relationship between current and potential difference for an ohmic conductor.
Current is directly proportional to potential difference at constant temperature
What happens to the resistance of an LDR as it gets brighter?
Decreases
State an example of an application of a thermistor in a circuit.
A thermostat
In a circuit, one component breaks and all the other components still work. What type of circuit is it?
parallel
In what type of circuit are all the components in one loop?
series
When cells are connected together in series, how is the total potential difference calculated?
Add the potential differences of the cells together
What happens to the resistance of an LDR as it gets darker?
increases
