Diode - A device which allows current to flow in one direction only, LED - Stands for Light Emitting Diode, Resistors - When connected in series, stop LED's blowing, Light Dependent Resistor - Its resistance lowers with more light, Street lights - A Use of LDR's, Forward Biased - When an diode points in the same direction as the current, Reverse Biased - When an diode points in the opposite direction as the current, The symbol for a buzzer - What is this a symbol for?, P=VI - Power = Voltage x Current, Watts - Units for Power, Kilowatt Hours - Units for electricity bills,

32 Electronics

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