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MHT CET 202623 AprilMorning Shift
Exam
MHT CET
Year
2026
Date
23 April
Shift
Morning Shift
Subject
Physics
Chapter
Semiconductors

MHT CET 2026 · 23 April · Morning Shift · Physics · Semiconductors

The truth table for the given circuit is

The truth table for the given circuit is
The truth table for the given circuit is

Options

  1. A
    ABE
    001
    010
    101
    110
  2. B
    ABE
    001
    010
    100
    110
  3. C
    ABE
    000
    011
    100
    111
  4. D
    ABE
    000
    011
    101
    110

Correct answer

C.

ABE
000
011
100
111

Step-by-step solution

From the given logic circuit, the boolean expressions for the outputs of the two AND gates are:
C=A⋅BC = A \cdot B
D=Aˉ⋅BD = \bar{A} \cdot B

The final output EE from the OR gate is:
E=C+DE = C + D
E=A⋅B+Aˉ⋅BE = A \cdot B + \bar{A} \cdot B

Taking BB common, we get:
E=B(A+Aˉ)E = B(A + \bar{A})
Since A+Aˉ=1A + \bar{A} = 1,
E=B⋅1E = B \cdot 1
E=BE = B

Therefore, the output EE is identical to the input BB.
The corresponding truth table is:
A=0,B=0⇒E=0A = 0, B = 0 \Rightarrow E = 0
A=0,B=1⇒E=1A = 0, B = 1 \Rightarrow E = 1
A=1,B=0⇒E=0A = 1, B = 0 \Rightarrow E = 0
A=1,B=1⇒E=1A = 1, B = 1 \Rightarrow E = 1

Answer:
ABE
000
011
100
111
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