JEE PYQ: Semiconductors Question 35
Question 35 - 2019 (10 Apr 2019 Shift 2)
The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage is 6 V, $R_L = 4\ \text{k}\Omega$, $R_i = 1\ \text{k}\Omega$. If battery voltage varies from 8 V to 16 V, minimum and maximum values of current through Zener diode are:
(1) 0.5 mA; 6 mA
(2) 1 mA; 8.5 mA
(3) 0.5 mA; 8.5 mA
(4) 1.5 mA; 8.5 mA
Show Answer
Answer: (3)
Solution
For $V = 8$ V: $I_{min} = 0.5$ mA. For $V = 16$ V: $I_{max} = 8.5$ mA.