JEE Main 2022 · 28 Jun · Shift 1 · Physics Q46

PhysicsSingle correct+4 / -1Question 46 of 90

In the following circuit, the correct relation between output (Y) and inputs A and B will be :

Y=AB

Y=A+B

Y=\overline{AB}

Y=\overline{A+B}

Answer and worked solution

Official answer: C

Diode stage. With cathodes at the inputs and X pulled up, X is high only if both A and B are high: AND.

Transistor stage. A common-emitter switch inverts.

So $Y=\overline{AB}$ (NAND).

(C)

Topics:Logic gates Transistors

JEE Main 2022 · 28 Jun · Shift 1, Physics question 46