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NEET-XII-Physics

P1 year:2019

with Solutions - page 3
Qstn# 39 Prvs-QstnNext-Qstn
  • #39
    m39 png
    The correct Boolean operation represented by
    the circuit diagram drawn is :
    (1) AND
    (2) OR
    (3) NAND
    (4) NOR
    digAnsr:   3
    Ans : ( 3 )
    Sol. From the given logic circuit LED will glow,
    when voltage across LED is high.
    R
    +6 V
    B
    A
    Truth Table
    A
    0
    0
    1
    1
    B
    0
    1
    0
    1
    Y
    1
    1
    1
    0
    This is out put of NAND gate.