Question

3) 5? 80mA 10? +\\ V_x 20? ?100mA NAME OK USE THE NODE VOLTAGE METHOD & CRAMER'S RULE TO FIND V_x. SHOW YOUR WORK node 1 100mA + i_x = i_y 100mA + i_x = i_y \frac{V_1}{10} = \frac{V_1 - V_x}{20} 100m = \frac{V_1 - V_x}{20} + \frac{V_1 - V_2}{5} node 2 i_y + 80mA = i_5 \frac{V_1 - V_x}{20} + \frac{V_1 - V_2}{5} = \frac{V_2}{10}

          3)
5?
80mA
10?
+\\
V_x
20?
?100mA
NAME
OK
USE THE NODE VOLTAGE
METHOD & CRAMER'S
RULE TO FIND V_x.
SHOW YOUR WORK
node 1
100mA + i_x = i_y
100mA + i_x = i_y
\frac{V_1}{10} = \frac{V_1 - V_x}{20}
100m = \frac{V_1 - V_x}{20} + \frac{V_1 - V_2}{5}
node 2
i_y + 80mA = i_5
\frac{V_1 - V_x}{20} + \frac{V_1 - V_2}{5} = \frac{V_2}{10}

3)
5?
80mA
10?
+

Vx
20?
?100mA
NAME
OK
USE THE NODE VOLTAGE
METHOD CRAMER'S
RULE TO FIND Vx.
SHOW YOUR WORK
node 1
100mA + ix = iy
100mA + ix = iy
(V1)/(10) = (V1 - Vx)/(20)
100m = (V1 - Vx)/(20) + (V1 - V2)/(5)
node 2
iy + 80mA = i5
(V1 - Vx)/(20) + (V1 - V2)/(5) = (V2)/(10)

Added by Amber H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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For part A: Find Vx, i_o, i_y. For part B: For what values of Vin will the LED light? When the LED is lit, how much current is flowing through it? 80mA +twoar 1-pu {00mA+ S V-V t + 55 20 100mA V,-V n=+08+fI node 108 3How youA wokiK PULE TU FNp Ny METHOD F CRAmERS USE THE NODE VOLTAGE