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Digital Electronics

Digital Electronics
Temperature variation is a/an

 Analog quantity
 None
 Either Digital or Analog quantity
 Digital quantity

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 011100001
 00011111
 11100000
 10101111

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

 1 and 4
 1 and 3
 0 and 4
 0 and 3

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Digital Electronics
The output of a gate is HIGH if and only if all its inputs are LOW. It is true for

 X-OR
 NAND
 X-NOR
 NOR

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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.
 90 mV.
 900 mV.
 300 mV.

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Digital Electronics
How the digital signals is transmitted through a single conductor ?

 Serial
None of these
 Analog
 Parallel

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