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Digital Electronics

Digital Electronics
The boolean algebra is mostly based on

 De Morgans theorem
 De Morpans theorem
 Standard theorem
 Boolean theorem

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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?

 30 mV.
 300 mV.
 900 mV.
 90 mV.

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Digital Electronics
A number system with radix 2 is known as

 Decimal
 Hexadecimal
 Octal
 Binary

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Digital Electronics
In flip flop clock is present but in latch clock is

  may be present/absent.
  none.
  present always.
  absent always.

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Digital Electronics
How many stable state/states present in flip-flop ?

 1
 3
 4
 2

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Digital Electronics
In a read-only memory information can be stored

 in any of the above ways depending upon the type of memory
 at the time of fabrication
 by the user only once during its life time
 by the user a number of times

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