Question:
In the circuit shown below, the Zener diode is ideal and Zener voltage is 6V. The output voltage \( V_o \) (in volts) is
In the circuit shown below, the Zener diode is ideal and Zener voltage is 6V. The output voltage \( V_o \) (in volts) is
Show 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.
Updated On: Aug 31, 2025
- 2.5V
- 5V
- 6V
- 3V
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
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).
- 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).
Was this answer helpful?
0
1
Top Questions on Zener Diodes
Manufacturers supply a zener diode with zener voltage \( V_z=5.6\,\text{V} \) and maximum power dissipation \( P_{\max}=\frac14\,\text{W} \). This zener diode is used in the circuit shown. Calculate the minimum value of the resistance \( R_s \) so that the zener diode will not burn when the input voltage is \( V_{in}=10\,\text{V} \).
- WBJEE - 2026
- Physics
- Zener Diodes
The output voltage in the following circuit is (Consider ideal diode case):
- JEE Main - 2025
- Physics
- Zener Diodes
- A certain p-n junction, having a depletion region of width 20mm was found to have a breakdown voltage of 100V. If the width of the depletion region is reduced to 1 mm during its production, then it can be used as a Zener diode for voltage regulation of
- OJEE - 2025
- Physics
- Zener Diodes
- A zener diode with 5V zener voltage is used to regulate an unregulated dc voltage input of 25V. For a 400 \( \Omega \) resistor connected in series, the zener current is found to be 4 times load current. The load current \( I_L \) and load resistance \( R_L \) are:
- JEE Main - 2025
- Physics
- Zener Diodes
In the following circuit, the reading of the ammeter will be: (Take Zener breakdown voltage = 4 V)
- JEE Main - 2025
- Physics
- Zener Diodes
View More Questions
Questions Asked in AP PGECET exam
- The absolute humidity of air at 101.325 kPa is measured to be 0.02 kg of water per kg of dry air. Then the partial pressure of water vapour in the air is:
- AP PGECET - 2025
- Thermodynamics
- If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase is known, then the latent heat of fusion can be calculated by the:
- AP PGECET - 2025
- Thermodynamics
- 1 mole of Argon gas is heated at constant pressure from 200 K to 600 K.
If \( C_p = 4\ \text{cal} \cdot \text{deg}^{-1} \cdot \text{mol}^{-1} \), then the change in entropy will be:
(Given \( \ln 3 = 1.09 \))
- AP PGECET - 2025
- Thermodynamics
- The minimum amount of work required to operate a refrigerator which removes 1000 Cal heat at $0^\circ$C and rejects at $50^\circ$C will be:
- AP PGECET - 2025
- Thermodynamics
- The entropy of single crystalline Silicon at absolute zero will be:
- AP PGECET - 2025
- Thermodynamics
View More Questions