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Digital Electronics

Digital Electronics
A + Ā is equal to

 1
 0
 A
 Ā

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 0, B = 0, C = 0
 A = 1, B = 1, C = 0
 A = 1, B = 1, C = 1
 A = 1, B = 0, C = 1

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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.
 90 mV.
 900 mV.

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Digital Electronics
Boolean algebra is also known as

 Gate algebra
 Switching algebra
 Transistor algebra
 Counting algebra

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Both A and B
 Combinational
 Conversion
 Sequential

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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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