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IGCSE Electricity (Electrical safety (Fuses, Double isulation, Circuit…
IGCSE Electricity
Electrical safety
Fuses
Double isulation
Circuit breakers
Earth wires
Energy in circuits
E=VIt
P=IV
Resistance causes energy to be transferred as heat and light
E=QV
I-v Graphs
Bulb
Wire
Resistor
Diode
Variables
Current
Symbol
Definitiion
Unit
Voltage
Unit
Symbol
Definition
V=IR
Charge
Unit
Q=It
Symbol
Definition
Series and paralell
Series
How does current change?
How does voltage change?
Parallel
How does current change?
How does voltage change?
Mains Electricity
230V -50Hz
Difference between alternating and
direct
Circuit symbols (
https://www.gcse.com/circuit_symbols.htm
)
Insulators
Conductors