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Note: all the LEDS in this question are following the Voltage-
Current graph shown below
0.05
Blue
0.04
Green
Rled
0.03
Red
Vdco
0.02
U= 12 V
Set current to 10 mA
0.01
LED
LED voltages
Circuit
0.5
1.5
2
2.5
3.5
Voltage across LED (V)
#31
Given the circuit #1 presented above, answer the following
questions:
ww--
Current in LED (A)

1) Determine the value of the V,(voltage forward of the LED)
GREEN, V,
for the LEDS RED, V,
and BLUE, V,
DGREE
DBLUE
when the current through the LEDS is 10mA,
V,RED =
V,BLUE =
; V,GREEN =
2) Is the LED in Circuit #1, connected in the way that will be
lighting up or not – Justify your answer

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Kirchhoff's first law or the junction law states that: the total current entering the junction is equal to the total current leaving the junction. This follows from the conservation of charge - charge cannot be created or destroyed. As a consequence, the charge entering the junction should equal the charge leaving the junction. The scenario below: 12 1₁ 13 follows Kirchhoff's junction rule violates Kirchhoff's junction rule as there is no outgoing current cannot determine whether it follows the junction rule or not without knowing the magnitude of the currents
Note: all the LEDS in this question are following the Voltage- Current graph shown below 0.05 Blue 0.04 Green Rled 0.03 Red Vdco 0.02 U= 12 V Set current to 10 mA 0.01 LED LED voltages Circuit 0.5 1.5 2 2.5 3.5 Voltage across LED (V) #31 Given the circuit #1 presented above, answer the following questions: ww-- Current in LED (A)
نقطتان )2( To decrease the resistivity of a -3 * :semiconductor, we can Increase the carier density Decrease the mobility Increase the electric field Increase the cross-sectional area of the resistor Decrease the length of the resistor