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Standard XII
Physics
Question

A circuit of logic gates given below, some input signal A, B, C are given with their output signal x, y and z is given in respective option, choose correct options :
75083.png
  1. If A=1,B=1,C=1 then x=0,y=1,z=1
  2. If A=0,B=0 and C=1 then x=1,y=0,z=1
  3. If A=0,B=0 and C=1 then x=1,y=0,z=0
  4. If OR gate is replaced by NOR gate then net output signal of the circuit becomes z=0 for the input A=0,B=0 and C=1.

A
If A=1,B=1,C=1 then x=0,y=1,z=1
B
If A=0,B=0 and C=1 then x=1,y=0,z=0
C
If OR gate is replaced by NOR gate then net output signal of the circuit becomes z=0 for the input A=0,B=0 and C=1.
D
If A=0,B=0 and C=1 then x=1,y=0,z=1
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Solution
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From the figure we get options A, B, and D as correct.
172404_75083_ans.png

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