Question

Figure shown a $DC$ voltage regulator circuit, with a Zener diode of breakdown voltage = $6V$. If the unregulated input voltage varies between $10\, V$ to $16\, V$, then what is the maximum Zener current ?

• A. 2.5 mA
• B. 3.5 mA
• C. 7.5 mA
• D. 1.5 mA

Answer 1

Answer: (B)

3.5 mA

Answer 2

Maximum current will flow from zener if input
voltage is maximum.