Physics · 2026
JEE Main · 24 January 2026, Shift 1 · Q46
A voltage regulating circuit consisting of Zener diode, having break-down voltage of 10 V and maximum power dissipation of 0.4 W, is operated at 15…
A voltage regulating circuit consisting of Zener diode, having break-down voltage of $\displaystyle 10$ V and maximum power dissipation of $\displaystyle 0.4$ W , is operated at $\displaystyle 15$ V . The approximate value of protective resistance in this circuit is $\displaystyle \_\_\_\_ \Omega$.
Official answer
From NTA’s final answer key for this paper.
125
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.