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Digital Electronics

Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 2.
 1.
 both are same
 none

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Digital Electronics
Why encoder is used in the digital electronics ?

 To convert coded information into non coded form
None of these
 It is used to separate address bus and data bus
 To convert non coded information into coded form

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Digital Electronics
The binary equivalent of hexadecimal number 4F2D is

 0101 1111 0010 1100
 0100 1111 0010 1100
 0100 1110 0010 1101
 0100 1111 0010 1101

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

None of these
 the input is LOW
 the input is HIGH and LOW
 the input is HIGH

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Digital Electronics
Each term in the standard SOP form is called a

 minterm
 literal
 maxterm
 don’t care

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Digital Electronics
The output of a NOR gate is high

 only when at least one input is high
 only when all the inputs are low
 only when all the inputs are high
 only when at least one input is low

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