# . The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is 6 V and the load resistance is RL = 4 k. The series resistance of the circuit is Ri =1k. If the battery voltage VB varies from 8 V to 16 V, what are the minimum and maximum values of the current through Zener diode ?

Question:

The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is $6 \mathrm{~V}$ and the load resistance is $\mathrm{R}_{\mathrm{L}}=4 \mathrm{k}$. The series resistance of the circuit is $R_{1}=1 \mathrm{k}$. If the battery voltage $V_{B}$ varies from $8 \mathrm{~V}$ to $16 \mathrm{~V}$, what are the minimum and maximum values of the current through Zener diode?

1. $0.5 \mathrm{~mA} ; 6 \mathrm{~mA}$

2. $1 \mathrm{~mA} ; 8.5 \mathrm{~mA}$

3. $0.5 \mathrm{~mA} ; 8.5 \mathrm{~mA}$

4. $1.5 \mathrm{~mA} ; 8.5 \mathrm{~mA}$

Correct Option: 3

JEE Main Previous Year 1 Question of JEE Main from Physics Semiconductor Electronics : Materials, Devices and Simple Circuits chapter.
JEE Main Previous Year 10 Apr. 2019 II

Solution:

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