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Digital Electronics

Digital Electronics
Which of the following gates cannot be used as an inverter?

 NOR
 NAND
 AND
 X-NOR

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Digital Electronics
An 8-square eliminates

 4 variables
 2 variables
 3 variables
 8 variables

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Digital Electronics
In digital systems, 1 byte is equal to ________ bit(s).

 4
 8
 2
 1

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Digital Electronics
Which one of the following is an invalid state in 8-4-2-1 binary coded decimal counter

 1001
 1100
 1000
 0011

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Digital Electronics
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

 K flip-flop
 SR flip-flop
 Shorted JK flip-flop
 T flip-flop

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Digital Electronics
Which of the following is known as a mod-2 adder?

 X-OR gate
 NAND gate
 X-NOR gate
 NOR gate

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