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Digital Electronics

Digital Electronics
A half adder is a ________ circuit.

 None
 Sequential
 Combinational
 Both A and B

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Digital Electronics
How many NOR gates are required to obtain AND operation?

 3
 4
 1
 2

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Digital Electronics
A debouncing circuit is

A bistable MV
An astable MV
A monostable MV
A latch

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 OR
 NAND
 X-OR
 NOR

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Digital Electronics
A 10 bit A/D conveter is used to digitize an analog signal in the 0 to 6 volt. The maximum peak to ripple voltage that can be allowed in the D.C. supply voltage is

 5 mV.
  5.85 mV.
  6 mV.
 10 mV.

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Digital Electronics
The 1’s complement of 11010111 is

 10101000
 11101000
 10101000
 00101000

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MORE MCQ ON Digital Electronics

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