247 JEE Main Semiconductors PYQs (2002–2026) with verified answers and step-by-step solutions.
This page collects every JEE Main Semiconductors previous-year question from Physics, 2002–2026. Each links to a full solution with a verified answer key. Click any year above to narrow the list, or open a question to study its step-by-step working and then practice it on PrepSharp's CBT player.
If X and Y are the inputs, the given circuit works as _______.
A diode has Zener voltage of 10 V and maximum power dissipation of 0.5 W, then the minimum resistance to be used in ser…
For the given logic circuit, which of the following inputs combination will make both LED-1 and LED-2 to glow?
Identify the correct truth table of the given logic circuit.
In a semiconductor p-n diode, the doping concentrations on p-side and n-side are 10¹⁵ atoms/cm³ and 10¹⁸ atoms/cm³, res…
The given circuit works as :
Two 4 bits binary numbers, A = 1101 and B = 1010 are given in the inputs of a logic circuit shown in figure below. The…
Two p-n junction diodes D₁ and D₂ are connected as shown in figure. A and B are input signals and C is the output. The…
Find the correct combination of A, B, C and D inputs which can cause the LED to glow.
The following diagram shows a Zener diode as a voltage regulator. The Zener diode is rated at Vz=5 ~V and the desired c…
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