Question

In the circuit shown below, the Zener diode is ideal and Zener voltage is 6V. The output voltage \( V_o \) (in volts) is

• A. 2.5V
• B. 5V
• C. 6V
• D. 3V

Hint:

In Zener diode circuits, the output voltage across the diode is fixed at the Zener voltage when the diode is in reverse breakdown region.

Answer 1

The Correct Option is B

The circuit consists of a Zener diode and a series resistor. The Zener diode regulates the output voltage across it. In this case, the Zener voltage is 6V, and it will maintain this voltage across the diode when in reverse breakdown region.
- The output voltage \( V_o \) is taken across the Zener diode, and since it is ideal, the Zener diode will maintain a constant voltage of 6V.
- The actual output voltage depends on the voltage drop across the resistor, which is determined by the input voltage and the Zener voltage.
Thus, the correct output voltage is 5V. Therefore, the correct answer is option (2).