For diode circuits, if the diode is reverse biased and non-conducting, it does not affect the current flow. If there is no current, the output voltage across the resistor will be zero.
Step 1: Circuit Analysis.
The circuit contains two diodes (\( D_1 \) and \( D_2 \)). A resistor is in series with \( D_1 \) and \( D_2 \). The output voltage is measured across the resistor. The input voltage is \( +5V \).
Step 2: Diode Behavior.
\( D_1 \) is forward biased as its anode is at \( +5V \) and its cathode is at a potential higher than ground. Therefore, \( D_1 \) conducts.
\( D_2 \) is reverse biased. Its anode is at 0V (ground), and its cathode is connected to \( +5V \). In reverse bias, \( D_2 \) does not conduct.
Step 3: Resistor Voltage Analysis.
As \( D_2 \) is reverse biased and not conducting, no current flows through the resistor. Consequently, there is no voltage drop across the resistor.
Step 4: Conclusion.
Since no current flows through the resistor, the output voltage \( V_0 \) is \( 0V \), as there is no voltage drop across it.
