inductance: Ability to store energy in a magnetic field (measured in Henries).inductors: Components that provide the ability to store energy in a magnetic
field for a circuit.infrared temperature sensor: A type of sensor that measures temperature
electrically.insulator: A substance that electrons are unable to move through freely.integrated circuit (IC):A component (in the form of a chip) that contains sev-
eral smaller components, such as resistors, capacitors, and transistors.inverter: A type of logic gate with a single input. See alsologic gate.inverting mode: What happens when an op amp flips an input signal to pro-
duce an output signal. See alsooperational amplifier.jack: A type of connector.See alsoconnector.kohm:1000 ohms. See alsoohm.live circuit: A circuit with voltage applied.logic gate: An integrated circuit that uses input values to determine output
value based on certain rules.low pass filter:A circuit that allows signals below a certain frequency to pass
through. See alsohigh pass filter.low signal: In digital electronics, a signal at or near 0 (zero) volts.lug: A metal protrusion, usually with a hole in the center, into which you can
feed wire and solder it to various components.microcontroller: A programmable circuit.multimeter: A testing device that measures things such as voltage, resis-
tance, and amperage.n-type semiconductor: A semiconductor to which contaminants are added.
This causes it to have more electrons than a pure semiconductor.ohm: A unit of resistance. The symbol for ohm is Ω. See alsoresistance.Glossary 385
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