How would I calculate the appropriate resistance needed for a specific voltage and a specific LED?
OK, you're going to ask what voltage and what LED. My question is hypothetical. However, in the future if I take a known LED, how do I calculate the appropriate resistor to prevent it from burning up? Sure, there are known resistors for known voltages; and give or take a little resistance for adjusting desired brightness. I don't want a "Pat" answer, I'd like to learn how to figure this out for myself.
OK, you're going to ask what voltage and what LED. My question is hypothetical. However, in the future if I take a known LED, how do I calculate the appropriate resistor to prevent it from burning up? Sure, there are known resistors for known voltages; and give or take a little resistance for adjusting desired brightness. I don't want a "Pat" answer, I'd like to learn how to figure this out for myself.