Simple Diode Circuit Problem

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Student01

Joined Apr 15, 2009
35
Could someone please tell me how to solve this? I know it's simple, but the answer I'm getting is different to the one in the book.



Here's my method:
Io = (Vs - Vd) /R = (IoxR - Vd)/R = (3-0.7)/1k = 2.3mA
Vd = Vt x ln(Id/Is) = 2.5e-2 x ln (2.3m/1e-13) = 0.596 V

The correct answer is: 0.603V
 
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