Following gates section is connected in a complete suitable circuit.
For which of the following combination, bulb will glow (ON):

Question

Following gates section is connected in a complete suitable circuit. For which of the following combination, bulb will glow (ON):

G1 Physics · Accepted Answer

Image The bulb glows only when there is a potential difference across it. One end of the bulb must be at logic 1 and the other end at logic 0. The source circuit gives this condition for: A = 1, B = 0, C = 0, D = 0 Therefore, Option B is correct.