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Q.

How many NAND gates are used in an OR gate ?

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a

four

b

two

c

three

d

Five

answer is C.

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Detailed Solution

For this purpose we use NAND gate in manner as shown. The first two NAND gates are operated as NOT gates adn their output are fed to the third The resulting circuit is OR gate. Here, there gates are used

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How many NAND gates are used in an OR gate ?