Physics Semiconductor Electronics NEET Previous Year Question MCQ (Single Correct)

The output of OR gate is 1 [2004]

A
If both inputs are zero
B
If either or both inputs are 1
C
Only if both inputs are 1
D
If either input is zero

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Text Solution

Verified by Experts
The correct answer is:
C

OR gate has two inputs and and a output . It follows a logic operation represented by‘ . Thus, its Boolean expression is

The truth table of OR gate is

A

B

Y

Thus, after observing its Boolean expression and its truth table, it is obvious that output of OR gate is if either or both inputs are .

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