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Digital Electronics

Digital Electronics
A half adder is a ________ circuit.

 Sequential
 Both A and B
 None
 Combinational

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Digital Electronics
The voltage levels for negative logic system

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

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Digital Electronics
The binary equivalent of hexadecimal number 4F2D is

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

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Digital Electronics
An exclusive NOR gate is logically equivalent to

 X-OR gate followed by an inverter
 complement of a NOR gate
 inverter followed by an X-OR gate
 NOT gate followed by a NOR gate

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Digital Electronics
Which number system has a base of 16

 Octal
 Hexadecimal
 Decimal
 None

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 8
 256
 255
 128

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MORE MCQ ON Digital Electronics

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