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Digital Electronics

Digital Electronics
In Boolean algebra, OR is represented by

 ×
 +
 /
 -

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Digital Electronics
A device which converts decimal number into BCD form is called

 code converter
 decoder
 multiplexer
 encoder

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Digital Electronics
A half adder has

 2 inputs and 1 outputs
 2 inputs and 2 output
 1 input and 2 outputs
 1 input and 1 output

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 The inputs are different
 The inputs are equal
 All inputs are HIGH
 All inputs are LOW

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Digital Electronics
The decimal equivalent of hexadecimal number of 2A0F is

 17670
 17607
 10767
 17067

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Digital Electronics
The voltage levels for positive logic system

 must necessarily be positive
 must necessarily be 0 V and 5 V
 may be positive or negative
 must necessarily be negative

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MORE MCQ ON Digital Electronics

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