## anonymous one year ago I need help with a circuit

1. anonymous

2. anonymous

anyone that can help, I understand the concepts just fine, I am just stuck

3. steve816

4. IrishBoy123

the diode is forward biased? so just short it out? @radar

5. anonymous

Oh? Why would we short it? You might be right, i just dont know why we would

6. e.mccormick

If you know linear, you should be able to set it up as a matrix. https://www.math.ucdavis.edu/~daddel/linear_algebra_appl/Applications/Electrical_Circuits/Electrical_Circuits.html http://mathonweb.com/help/Theory.htm Then solve for the unknowns.

7. IrishBoy123

the simplest approach just shorts the diode |dw:1440318844477:dw|

8. IrishBoy123

|dw:1440319024217:dw| from these: $$I_1 = \frac{5 - V_N}{1000}$$ $$I_2 = \frac{V_N}{1000}$$ $$I_3 = \frac{V_N - 0.3}{1000}$$ $$I_1 = I_2 + I_3$$