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Solution


Q.

The following diagram shows a Zener diode as a voltage regulator. The Zener diode is rated at VZ=5 V and the desired current in the load is 5 mA. The unregulated voltage source can supply up to 25 V. Considering the Zener diode can withstand four times of the load current, the value of resistor Rs (shown in circuit) should be ____ Ω.     [2026]
1 1000  
2 100  
3 4000  
4 10  

Ans.

(1)

(Dropped)