?????? ???? ?? ??? ??????

Resistor ???? ?????? ??? ?? ????? ??? ???? ???? ??? ?????? ??? ???? ?????????????? ????? ?? Resistor ?????? ??????? ??? ???  Resistor ???? ???????????? ??????? ?? ??? ??? ?????? ?? Resistor ??? ?????? ??????

???? ???? ???? LED ????????? ?? ????? battery ??  voltage ??? ????? ?? ???? battery ?? ???? ?????? ?????? ??????
???? ?? ?????, ?? ?? ?? ????
????? LED ???? ????? ???? ??? ?????
????? ?? ???? ????
????, ???? Resistor ?????? ???, Series ??
?????? ?? ????? Resistor ????????
?????? LED ?? Specification ?? ???? ??????
??? ???,
Battery Volt =12
LED Volt = 2
LED Amp = 20 mA (0.02A)

??? ?? ????? ??????? V=IR
????? R=V/I
?????? V=12-2= 10
??????, R= 10/0.02 =500 ohm

????? Resistor ?? ??? ????? 500 (ohm)
??????? calculation ?? ????? ????

google, youtube ? LED ???? search ???, ??? ???? ???? ????? ???????

 

 

 

 

 

 

 

 

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