how to not burn any led - Electronics Tutorial
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0:00 start
1:00 explaining breadboard
2:07 end explaining breadboard
3:58 burning my led
4:10 end burning my led
5:51 getting resistance value using multimeter
6:13 end getting resistance value using multimeter
7:13 last test with protection resistor in series with led
7:53 end
power = voltage * current
voltage = resistance * current
power = resistance * current * current (current squire)
P = V*I = R*I*I
you need to know the power supply output power in watts
then determine how much power your circuit needs
(compare between the two)
if power supply gives more than what your led needs. the led will be burned.
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