Sorry, that's not completely true. This is true if Leds are close on the same Wafer. There are differences between distant areas on the same wafer. Only one rule = never put LEDs in parallel.
Only one rule = never put LEDs in parallel.
Total voltage / total current gives resistance Assuming the battery resistance is 0 ohms.
I=(Vin - Vf) / RI=2/150I=13.3mAQuestion 3:What is the Rtot of circuit 3?
1. How much resistance does a 1N4007 diode have when it is forward biased?2. When it is reversed biased?3. How much resistance does a fresh 9 volt carbon battery have?4. What is the total circuit resistance in the schematic below. Itot = 106.67ma
I think what is making this so difficult for me to grasp is there is no mention of resistance really on LED datasheets. If it (the LED) had resistance characteristics why is there no graph of resistance vs voltages beyond Vf?