Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 88

90.

The correct Boolean operation represented by the circuit diagram drawn is :

(a) AND

(b) OR

(c) NAND

(d) NOR

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Answer:

Correct Answer: 90. (c)

Solution:

  1. (c) From the given logic circuit, LED will glow, when voltage across LED is high.

Truth Table

i.e.,circuit represents NAND gate.