In the DC voltage regulator circuit shown, the Zener breakdown voltage $V_{Z}$ = 5 V. If the unregulated input varies between 11 V to 15 V, maximum zener current (in mA) is

Question

Smart Achievers · Accepted Answer

(3)

$Zener current will be maximum, when V = 15 V, 15 - (i \times 2.5 k) = 5, i = 4 m A, i_{z} = 3 m A$

Solution

Q.
In the DC voltage regulator circuit shown, the Zener breakdown voltage $V_{Z}$ = 5 V. If the unregulated input varies between 11 V to 15 V, maximum zener current (in mA) is

1 1

2 2

3 3

4 0

Ans.
(3)

$Zener current will be maximum, when V = 15 V, 15 - (i \times 2.5 k) = 5, i = 4 m A, i_{z} = 3 m A$

Want Us to Email you About Special Offers & Updates?

Solution

Q. In the DC voltage regulator circuit shown, the Zener breakdown voltage VZ = 5 V. If the unregulated input varies between 11 V to 15 V, maximum zener current (in mA) is

1 1

2 2

3 3

4 0

Ans. (3) Zener current will be maximum, when V=15V, 15-(i×2.5k)=5, i=4 mA, iz=3 mA

Want Us to Email you About Special Offers & Updates?

Q.
In the DC voltage regulator circuit shown, the Zener breakdown voltage $V_{Z}$ = 5 V. If the unregulated input varies between 11 V to 15 V, maximum zener current (in mA) is

Ans.
(3)

$Zener current will be maximum, when V = 15 V, 15 - (i \times 2.5 k) = 5, i = 4 m A, i_{z} = 3 m A$