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If the glow of the bulb is considered an output, the correct Boolean operation represented by the circuit diagram drawn will be:
  • a)
    AND
  • b)
    OR
  • c)
    NAND
  • d)
    NOR
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
If the glow of the bulb is considered an output, the correct Boolean o...
From the given circuit we can see that,
  • Two Keys are connected parallel to a LED and a resistor.
  • Hence if any of the keys is open, no current will flow through keys and hence bulb will glow
  • But if both the keys are closed current will start flowing from keys instead of LEDs, since current (I) will always flow where resistance is minimum.
  • Which means the truth table for the given circuit can be given as
  • Here 1 shows key is closed and current can flows through it
  • And 0 shows key is open and current can’t flow through it
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Most Upvoted Answer
If the glow of the bulb is considered an output, the correct Boolean o...
From the given circuit we can see that,
  • Two Keys are connected parallel to a LED and a resistor.
  • Hence if any of the keys is open, no current will flow through keys and hence bulb will glow
  • But if both the keys are closed current will start flowing from keys instead of LEDs, since current (I) will always flow where resistance is minimum.
  • Which means the truth table for the given circuit can be given as
  • Here 1 shows key is closed and current can flows through it
  • And 0 shows key is open and current can’t flow through it
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Question Description
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