JEE Main 2026 — Jan 23, Shift 1 — Physics solution

JEE Main2026Jan 23, Shift 1Physics

Note: NTA officially dropped this question in the final answer key. Mark option D for Bonus Marks.

The following diagram shows a Zener diode as a voltage regulator. The Zener diode is rated at $V_{Z} = 5 V$ and the desired current in load is $5 mA$ . The unregulated voltage source can supply upto $25 V$ . Considering the Zener diode can withstand four times of the load current, the value of resistor $R_{S}$ (shown in circuit) should be ______ $Ω$ .

A
$4000$
B
$10$
C
$100$
D
$1000$

Solution

NTA marked this question as dropped.

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