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Digital Electronics

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

 1100
 1001
 1000
 0011

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Digital Electronics
Complement of XNOR and NOR is ________ and ________ respectively.

 NOR, XNOR
 XOR, OR
 XOR, NOR
 OR, NOR

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Digital Electronics
In Boolean algebra A.A is equal to

 2A
 A
 1
 A²

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Digital Electronics
Combinations that are not listed for the input variables are

 Overflow
 Carry
 Borrow
 Don't Care

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Digital Electronics
Latches are ________ circuits.

 level triggered
 pulse triggered
 count triggered
 edge triggered

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Digital Electronics
A debouncing circuit is

A latch
A monostable MV
An astable MV
A bistable MV

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