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Electricity, equations, Circuit symbols, P - Coggle Diagram
Electricity
Units
Volts (V)
voltage/ potential diffrence
1V = 1J/C
Ohms (
resistance (R)
Amps (A)
current (I)
Watts (W)
power (P)
Coulombs (C)
Charge (Q)
Joules (J)
energy (E)
Static electricity
gold-leaf elecctroscope experiment
suspending charged rod / van de graaf
balloons and hair
electrons transfer
Inkjet printers / photocopiers
lightning
Safety
Use fuses
3, 5, 13A
Or circuit breakers
Insulate/earth appliances
Types of circuit
series
current is same evrywhere
total p.d. is shared between components
in a line so all or nothing
total resistance is sum of resistance of each component
parallel
p.d. is same across all branches
current shared between branches
each component separately connected
total reistance decreases if you add resistors in parallel
supply
a.c.
changes direction
mains
d.c.
one direction
battery
equations
V=IR
Q=IT
E = QV
P=IV
E = QIR
Circuit symbols
lfilament lamp
LED
diode
motor
generator
fixed resistor
Thermistor
LDR
variable resistor
ammeter
voltmeter
cell
Switch
open
closed
P