4.3 component characteristics Flashcards
1
Q
How do you calculate the resistance of an appliance?
A
R = V / I
2
Q
What happened to a filament lamps resistance if the temperature increases?
A
It increases
3
Q
What happens if a thermistors temperature increase
A
The resistance decreases
4
Q
Why does a light – dependent resistors resistance decrease?
A
Because the light intensity on it increases
5
Q
What is a diode?
A
A non-Ohmic conductor that has a much higher resistance in its reverse direction then it’s forward direction
6
Q
What is a light – emitting diode (LED)
A
A diode that emits light when it conducts
7
Q
What is a thermistor?
A
A resistor whose resistance depends on the temperature of the thermistor
8
Q
What is a light – dependent resistor (LDR)
A
A resistor whose resistance depends on the intensity of the light incident on it
