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Switch
Device used to turn electrical systems on and off, usually by closing or opening a circuit, or to change the route of a particular current. For example, switches are used to turn a light on or off, to select a channel on a television set, or to set the cooking time on an electric oven.
There are many different types of switches. The flick of a switch is called a throw; the part that is moved is called the pole. A single pole single throw (spst) switch has one pole and one point of contact. A single pole double throw (spdt) has one pole with two possible contact points. A double pole double throw (dpdt) has two poles with two points of contact.
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alternating current
ammeter
amp
ampere
amplifier
analogue
battery
capacitor
cell, electrical
circuit (physics)
circuit breaker
conductor (chemistry)
conventional current
coulomb
digital (computing)
diode
direct current
electric bell
electric charge
electric current
electric motor
electric power
electricity
electromotive force
electron flow
electronic system
electronics
energy transfer
farad
feedback (general)
firmware
generator
hardware
input device
insulator
integrated circuit
interface
lamp, electric
LCD
light bulb
light-dependent resistor
light-emitting diode
liquid-crystal display
logic gate
ohm
Ohm's law
operational amplifier
output device
parallel circuit
potential difference
printed circuit board
process control
process stage
rectifier
relay
resistance
resistor
semiconductor
sensor
series circuit
software
static electricity
subsystem
switch
systems design
systems program
thermistor
thyristor
timer circuit
transducer driver
transistor
volt
voltage
voltmeter
watt
ammeter
amp
ampere
amplifier
analogue
battery
capacitor
cell, electrical
circuit (physics)
circuit breaker
conductor (chemistry)
conventional current
coulomb
digital (computing)
diode
direct current
electric bell
electric charge
electric current
electric motor
electric power
electricity
electromotive force
electron flow
electronic system
electronics
energy transfer
farad
feedback (general)
firmware
generator
hardware
input device
insulator
integrated circuit
interface
lamp, electric
LCD
light bulb
light-dependent resistor
light-emitting diode
liquid-crystal display
logic gate
ohm
Ohm's law
operational amplifier
output device
parallel circuit
potential difference
printed circuit board
process control
process stage
rectifier
relay
resistance
resistor
semiconductor
sensor
series circuit
software
static electricity
subsystem
switch
systems design
systems program
thermistor
thyristor
timer circuit
transducer driver
transistor
volt
voltage
voltmeter
watt
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