Atomic_Sheep
Member
Hi guys, I was just wondering, lets say we have a simple LED circuit with a battery, a resistor and an LED. Does it matter where the resistor is palced i.e. before the LED or after?
If it doesn't which based on what I've seen i think is the case, why is this case? This is the rant part. My understanding of the way the world works is first come first serve. In other words, if you have an LED that has lets say specs of 10mA and it's I dunno how much LED's are... 2 volts? then if we have a 12V 1A battery, then if we place the resistor after the LED, the LED in my mind should get the full brunt of the electron flow/power/whatever? In the split seconds before the LED burns out, the resistor would be getting 10V 980mA current and basically assuming we've calculated the correct size for the resistor, we have prevented a short circuit from happening but have done nothing in the way of preventing blowing the LED. (according to my calculations, the resistor should be around 10.2 ohms and correct me if I'm wrong... I just did 10V/0.98).
If it doesn't which based on what I've seen i think is the case, why is this case? This is the rant part. My understanding of the way the world works is first come first serve. In other words, if you have an LED that has lets say specs of 10mA and it's I dunno how much LED's are... 2 volts? then if we have a 12V 1A battery, then if we place the resistor after the LED, the LED in my mind should get the full brunt of the electron flow/power/whatever? In the split seconds before the LED burns out, the resistor would be getting 10V 980mA current and basically assuming we've calculated the correct size for the resistor, we have prevented a short circuit from happening but have done nothing in the way of preventing blowing the LED. (according to my calculations, the resistor should be around 10.2 ohms and correct me if I'm wrong... I just did 10V/0.98).
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