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SPST Switch
control device. opens or closes a circuit
Puch switch
control device. temporary closes a circuit
single pole double throw
control device. diverts the current down either one or two possible paths
voltmeter
must always be conected in parallel
ammeter
must always be connected in series
diode
a control device that allows current to flow in only one direction
LED
a control device that allows current to flow in only one direction and emits light at the same time
LDR
a sensor: light dependant resistor
thermistor
a sensor that detects vhange in temperature
transistor
control device: amplifies or multiplies current or can act like a switch
capacitor
control device that can store and release energy
