Doubtclip is an AI tutor that turns any homework or exam doubt into a step-by-step whiteboard video lesson with diagrams, formulas, and voice explanation.

Which subjects and exams does it support?

It supports Physics, Chemistry, Mathematics/Calculus and related STEM doubts for school boards, JEE, NEET, and global high-school / undergrad practice.

How do I get a video solution?

Upload a photo of the question or paste the text, sign in, and Doubtclip generates a whiteboard-style explanation video you can watch and share.

Is Doubtclip available worldwide?

Yes. Doubtclip is a web app for students globally. Lessons are available in English and Hinglish.

Semiconductors

JEE Main level, single correct, medium

169 of 209

Question 169 of 209

In the circuit, the logical value of $A=1$ or $B=1$ when potential at $A$ or $B$ is $5V$ and the logical value of $A=0$ or $B=0$ when potential at $A$ or $B$ is $0V$ .

The truth table of the given circuit will be :

Show answer and solution

Answer: (A) $\begin{matrix}A & B & Y \\ 0 & 0 & 0 \\ 1 & 0 & 0 \\ 0 & 1 & 0 \\ 1 & 1 & 1\end{matrix}$

When both

A

and

B

have logical value ‘

1

’ both diode are reverse bias and current will flow in resistor hence output will be

5

volt i.e. logical value ‘

1

’.
In all other case conduction will take place, hence output will be zero volt i.e. logical value ‘

0

’. So truth table is

\begin{matrix}A & B & Y \\ 0 & 0 & 0 \\ 0 & 1 & 0 \\ 1 & 0 & 0 \\ 1 & 1 & 1\end{matrix}

Thus, given circuit is equivalent to an AND gate.

JEE Main question paper PDF

Open a shift to read the full paper on this page, or download it.

JEE Main 2025 Apr 2 Shift 1 question paper

Open Download PDF

Opening paper…

Explain it as a whiteboard videoStep-by-step, in Hinglish or English. Your first video needs no login.Solved it on paper but got it wrong?Upload a photo of your working. Mistake Doctor marks the exact line that broke.

See it move: Semiconductors, diodes and logic gates simulationDrag the sliders and watch the numbers in this question change.

More Physics practice

JEE Main Physics practice question on Semiconductors (Logic gates), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

In the circuit, the logical value of A=1A=1A=1 or B=1B=1B=1 when potential at AAA or BBB is 5V5V5V and the logical value of A=0A=0A=0 or B=0B=0B=0 when potential at AAA or BBB is 0V0V0V.The truth table of the given circuit will be :

JEE Main question paper PDF

More Physics practice

In the circuit, the logical value of $A=1$ or $B=1$ when potential at $A$ or $B$ is $5V$ and the logical value of $A=0$ or $B=0$ when potential at $A$ or $B$ is $0V$ .

The truth table of the given circuit will be :