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Symbolic representation of four logic gates are shown as. Pick out which ones are for AND, NAND and NOT gates, respectively

1. (ii), (iii) and (iv)
2. (iii), (ii) and (i)
3. (iii), (iii) and (iv)
4. (ii), (iv) and (iii)

Correct answer: (ii), (iii) and (iv)

Solution

The AND gate is typically represented by a D-shaped symbol, the NAND gate is an AND gate with a small circle (indicating negation), and the NOT gate is a triangle with a small circle. Based on the symbolic representations, the correct sequence is (ii), (iii), and (iv).

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