In the figure, there is a dc voltage regulator circuit with a zener breakdown voltage equal to 6V . If the unregulated input voltage varies between 10V to 16V , what is the maximum zener current?

Question

In the figure, there is a dc voltage regulator circuit with a zener breakdown voltage equal to 6V . If the unregulated input voltage varies between 10V to 16V , what is the maximum zener current? <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/p-sjwsxmrr8gz7kx5i.jpg" /> (A) 1.5mA (B) 7.5mA (C) 3.5mA (D) 2.5mA

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/p-sjwsxmrr8gz7jkai.jpg" /> i1=(6/4)=1.5mA Maximum current will be obtained for battery voltage 16V i=(16 - 6/2)=5mA i2(.max.)=5-1.5=3.5mA

Q. In the figure, there is a dc voltage regulator circuit with a zener breakdown voltage equal to $6 V$ . If the unregulated input voltage varies between $10 V$ to $16 V$ , what is the maximum zener current?

$1.5 m A$

$7.5 m A$

$3.5 m A$

$2.5 m A$

$i_{1} = \frac{6}{4} = 1.5 m A$
Maximum current will be obtained for battery voltage
$16 V$
$i = \frac{16 - 6}{2} = 5 m A$
$i_{2} (ma x) = 5 - 1.5 = 3.5 m A$

Q. In the figure, there is a dc voltage regulator circuit with a zener breakdown voltage equal to 6V . If the unregulated input voltage varies between 10V to 16V , what is the maximum zener current?

1.5mA

7.5mA

3.5mA

2.5mA