Left side is -4V.
[15%] Calculate V and currents flowing through the two diodes (Ip1 and Ip) based on 0.7-V model. Please use the following procedure: 1. Make a plausible assumption; 2. Calculate the voltage and currents based on the assumption; 3. Check if the solution is consistent with the assumption.
1k
oVo
4V
4k
-4V