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Digital Electronics

Digital Electronics
The number of comparators in a parallel conversion type 8-bit analog to digital converter is

 256.
  8.
  255.
 16.

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Digital Electronics
The boolean algebra is mostly based on

 De Morpans theorem
 Standard theorem
 De Morgans theorem
 Boolean theorem

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Digital Electronics
AND operation is equivalant to

 Intersection
 Both B and C
 Union
 Division

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Digital Electronics
The field, which is never present in an assembly language statement, is

 Comment
 Operand
 Continue
 Opcode

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Digital Electronics
Dual slope ADC has R = 1 KΩ and C = 0.22 nanofarad has charging and discharge times for some voltage is 9 ns and 3 ns respectively. The reference Voltage is 2.2 V. What is the peak voltage reached by triangular wave during charging?

 90 mV.
 30 mV.
 300 mV.
 900 mV.

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 three 3-input OR gates and one 3-input AND gate
 three 3-input NAND gates and one 3-input NOR gate
None of these
 four input NAND gates only

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