I had a small circuit with a few LEDs and a 10k ohm resistor, powered by a 5V pin from an Arduino.
I noticed that every time I added another if I had just one LED, then the resistor would drop most of the voltage, while the LED would only drop 1.6V. As I added another LED, now having two in the circuit along with a resistor, the resistor started to drop less voltage.
- So my question is, if I kept on adding LEDs, why does the voltage dropped by the resistor decrease, is it because the forward voltage does not change?
- What would happen if I added 10 LEDs, that have a forward voltage of 1.6V, only using an input of 5V, from my arduino, and a resistor?
- Would the resistor create no voltage drop?
- Would the forward voltage be reduced due to only providing 5V?
- Or would only a few LEDS light up?
- Why does voltage drop reduce for resistors and not LEDs?