Electrical and electronic Flashcards
What does switch help?
Used to turn the circuit on
stays on until turned off
What does push to make switch function
Can be used to turn the circuit on or as contact sensor
stays on while presses
What does thermistor function?
Used for temperature sensing
type of resistor where resistance increases as temperature increases
Function of LDR
Used for sensing light
type of resistor which increases with amount of light increases
Function of transistor?
Used for electronic switch
used as part of amplifier to boost power of output device
What is function of LED
Converts electricity to light
allows electiricty to flow one way
What is function of lamp
Turns electricity into light
Function of buzzer
Turns electricity into sound
makes buzzing noise
Function of speaker
Turns electricity into sound
Function of motor
Turns electricity into circular movement
Function of battery
A collection of cells used to provide power in circuit
Function of resistor
Can be used to control the amount of current in circuit
or to protect other components
Function of variable resistor
A resistor whose resistance can be changed
can be used to control the current in circuit
Function of fuse
Burn out if current goes above rated level
used to protect circuits from too much current
Function of capacitor
Used to store charge
can be used in conjunction with resistor to provide simple timing circuit
Function of diode
Only allows electricity to flow in one direction
can be used to protect components
Function of relay
Can be used as a part of low-powered circuit to turn
on higher-powered circuit
