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Digital Electronics

Digital Electronics
The output of a gate is HIGH if and only if all its inputs are LOW. It is true for

 X-OR
 NOR
 NAND
 X-NOR

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

 1000
 0011
 1001
 1100

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Digital Electronics
A debouncing circuit is

A monostable MV
A bistable MV
An astable MV
A latch

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Digital Electronics
A bubbled OR gate is equivalent to a

 NOR gate
 AND gate
 X-OR gate
 NAND gate

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Digital Electronics
(1D)16 in BCD 8421 code is

 00101001
 00011111
 00011101
 00100100

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Digital Electronics
The terms which cannot be combined further in the tabular method are called

 selective prime implicants
 prime implicants
 implicants
 essential prime implicants

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