Download Resistor (fixed value) Variable Resistor Light Dependent Resistor

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Transcript
Component
Resistor
(fixed
value)
Variable
Resistor
Potentiometer
Light
Dependent
Resistor
Thermistor
Symbol
Description
(& Picture)
Slows down the current passing
through it by a fixed amount.
Used to protect components
form too much current.
Slows down the current. The
resistance can be changed by
twisting it
Used to be able to adjust a potential
divider/calibrate an analogue input
A three legged variable
resistor. Used to split voltage
or just as a variable resistor
Used to vary the voltage like in
an amplifier volume control
The brighter the light level the
higher the resistance.
Used to sense light levels. E.g.
nightlight or street light
The hotter the temperature
the lower the resistance.
Used to sense heat levels. E.g.
automatic fan or heater, bath
water sensor for kids