In this lab we are supposed to light up two LEDs connected in parallel with a 9V power supply. However these LEDs are rated for 2V and 5V. Which means in parallel configuration, both are receiving 9V of the power supply and will burn out almost instantly. To prevent this from happening we have to add a resistor to accompany each of the LEDs. Given the rated voltage of the LEDs and the current flowing throw them, we calculated our resistors to be:
R_1= 175.82 ohms. To be connected in series with LED rated at 5 Volts
R_2= 350 ohms. To be connected in series with LED rated at 2 Volts.
The closest available resistors we can get for this set up is
R_1= 150 ohms
R_2= 360 ohms
Our data for this configuration:
Voltage for LED_1 = 6.68
Voltage for LED_2 = 1.64
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