Please enable JavaScript.
Coggle requires JavaScript to display documents.
Elecreicity, ., unit, measured by, measured by, unit, unit, measured by -…
Elecreicity
Electrical Components
diode
Has very high resistance in one direction
transistor
Work as electronic switch
capacitor
Store an in electrical charge for a period time
thermistor
Used as temperature sensors
variable resistor
Can change resistance
IC
Arranged in different configurations for specific purposes
resistor
Limit the level of currents
LED
give off light in electrical equipment
LDR
Detect light levels
static electricity
electroscope
Positive charge and Negative charge
different charge
attract
same charge
repel
friction
charging up rods
van de graff generater
uses
spraying a car
earthing petrol tankers
resistance
ohm(Ω)
ohmmeter
opposes the flow of charge
causes heating effect
sources
dynamo
batteries
solar cell
voltage
volt(V)
voltmeter
connected in parallel
high resistance
current
ampere(A)
ammeter
connected in series
low resistance
circuits
series
all components connected in one line
Vτ=V₁+V₂+......+Vɴ
Iτ=I₁=I₂=.....=Iɴ
Rτ=R₁+R₂+.....Rɴ
All components controlled by one switch
If one component whole circuits is faulty, the whole circuits turns on
parallel
Vτ=V₁=V₂=......=Vɴ
Iτ=I₁+I₂+......+Iɴ
All components connected in branches
formular
.
unit
measured by
measured by
unit
unit
measured by
