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Digital Electronics

Digital Electronics
A gate is enabled when its enable input is at logic 0. The gate is

 AND
 NOR
 none of these
 NAND

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Digital Electronics
9’s complement of 52784630 is

 57316379
 48225469
 47215369
 58326479

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Digital Electronics
The devices commonly used for making digital circuits are

 relays
 contact switches
 mechanical switches
 semiconductor devices

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Digital Electronics
(11011) 2 in BCD 8421 code is

 00011011
 11011001
 01101100
 00100111

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Digital Electronics
When will be the output of an AND gate is LOW ?

 When all inputs are HIGH
 When any input is HIGH
 When all input is LOW
 When any input is LOW

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Digital Electronics
Truth table is used to express

 Boolean addition
 Boolean expression
 Boolean map
 Boolean matrix

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MORE MCQ ON Digital Electronics

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