The figure represents a voltage regulator circuit using a Zener...

The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is

6V

and the load resistance is,

{R}_{L} = 4kΩ

. The series resistance of the circuit is

{R}_{i} = 1kΩ

. If the battery voltage

{V}_{B}

varies from

8V

16V

, what are the minimum and maximum values of the current through Zener diode?
The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is 6V

The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is 6V

Options

A $0.5mA; 6mA$
B $1mA; 8.5mA$
C $0.5mA; 8.5mA$
D $1.5mA; 8.5mA$

Correct answer

C. $0.5mA; 8.5mA$

Step-by-step solution

For

{V}_{0} = 8V

8V - 1000{i}_{0} = 6V

{i}_{0} = 2mA

{i}_{0} - {i}_{1} = \dfrac{6}{4000} = 1.5mA

{i}_{1} = 0.5mA

For

{V}_{0} = 16V

16V - 1000{i}_{0} = 6V

{i}_{0} = 10mA

{i}_{0} - {i}_{2} = \dfrac{6}{4000} = 1.5mA

{i}_{2} = 8.5mA

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