Terms and definitions for Technology

Terms with definitions

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