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Digital Electronics

Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m-1
 2m
 2m+1
 2m-1

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 1, C = 0
 A = 1, B = 1, C = 1
 A = 0, B = 0, C = 0
 A = 1, B = 0, C = 1

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

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

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Digital Electronics
OR-AND realization of a combinational circuit is equivalent to

 NOR-NOR realization
 NAND-NAND realization
 NOR-NAND realization
 NAND-NOR realization

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Digital Electronics
The NOR gate can function as a NOT gate if

 one input is set to 1
 inputs are left open
 all inputs are connected together
 one input is set to 0

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Digital Electronics
An all or nothing gate is the other name of

 X-NOR gate
 OR gate
 X-OR gate
 AND gate

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MORE MCQ ON Digital Electronics

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