GATE 2026 IN – Question 34
In the circuit below, the maximum value of $v_{out}$ is ________ V. (Rounded off to the nearest integer.)
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Correct answer: 11 to 11
Explanation
At the positive input peak, $v_{in}=15\ \mathrm V$ and the 3 V Zener is in reverse breakdown. The loop current is $I=(15-3)/(4+8)=1\ \mathrm A$.
The output includes the Zener voltage and the voltage across the 8 Ω resistor: $v_{out,max}=3+8I=11\ \mathrm V$. Thus the maximum is **11 V**.