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Digital Electronics

Digital Electronics
A + Ā is equal to

 Ā
 A
 0
 1

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 1 and 4
 0 and 3
 0 and 4
 1 and 3

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Digital Electronics
The NAND gate is AND gate followed by ___________.

None of these
NOT gate
AND gate
OR gate

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 500 Hz.
  1 KHz.
 2 KHz.
 250 Hz.

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Digital Electronics
In Boolean algebra A.A is equal to

 2A
 A²
 A
 1

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

 17670
 17607
 10767
 17067

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