Solution: Look beyond the schematic. The PDF will get you 90% of the way. The last 10% requires a thermal camera, skepticism, and an intern who isn't afraid to ask, 'But what if the diode isn't the problem?'
Using the constant voltage drop model ( (V_D = 0.7V) ), find (I_D) and (V_o) for the circuit with a 5V source, 1kΩ resistor, and diode in series. diode circuit analysis problems and solutions pdf