Following gates section is connected in a complete suitable circuit.
For which of the following combination, bulb will glow (ON):
For which of the following combination, bulb will glow (ON):
- A = 0, B = 1, C = 1, D = 1
- A = 1, B = 0, C = 0, D = 0
- A = 0, B = 0, C = 0, D = 1
- A = 1, B = 1, C = 1, D = 0
The Correct Option is B
Solution and Explanation
The bulb will glow if it experiences a potential drop across it. This requires one end of the bulb to be at a high state (1) and the other end to be at a low state (0).
In Option (2), setting \( A = 1, B = 0, C = 0, D = 0 \) satisfies this condition, as it results in the output of the OR gate being high, creating the required potential drop across the bulb.
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