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Logic Gates

Q1:

Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?

A OR gates only

B AND gates and NOT gates

C AND gates, OR gates, and NOT gates

D OR gates and NOT gates

ANS:C - AND gates, OR gates, and NOT gates

Expression for XOR is: A.(NOT B)+(NOT A).B
so in the above expression the following LOGIC GATES ARE USED:
1.AND
2.OR
3.NOR



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